diff --git a/include/api.php b/include/api.php
index d20cd03dec..c383c55650 100644
--- a/include/api.php
+++ b/include/api.php
@@ -111,7 +111,7 @@ function api_source()
 function api_date($str)
 {
 	// Wed May 23 06:01:13 +0000 2007
-	return Temporal::convert($str, 'UTC', 'UTC', "D M d H:i:s +0000 Y");
+	return Temporal::utc($str, "D M d H:i:s +0000 Y");
 }
 
 /**
@@ -3207,7 +3207,7 @@ function api_account_rate_limit_status($type)
 				'@attributes' => ["type" => "integer"],
 				'hourly-limit' => '150',
 				'@attributes2' => ["type" => "integer"],
-				'reset-time' => Temporal::convert('now + 1 hour', 'UTC', 'UTC', Temporal::ATOM),
+				'reset-time' => Temporal::utc('now + 1 hour', Temporal::ATOM),
 				'@attributes3' => ["type" => "datetime"],
 				'reset_time_in_seconds' => strtotime('now + 1 hour'),
 				'@attributes4' => ["type" => "integer"],
@@ -3217,7 +3217,7 @@ function api_account_rate_limit_status($type)
 				'reset_time_in_seconds' => strtotime('now + 1 hour'),
 				'remaining_hits' => '150',
 				'hourly_limit' => '150',
-				'reset_time' => api_date(Temporal::convert('now + 1 hour', 'UTC', 'UTC', Temporal::ATOM)),
+				'reset_time' => api_date(Temporal::utc('now + 1 hour', Temporal::ATOM)),
 			];
 	}
 
diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
index 47c5c98913..52031aa72a 100644
--- a/include/bb2diaspora.php
+++ b/include/bb2diaspora.php
@@ -245,17 +245,17 @@ function format_event_diaspora($ev) {
 
 	// @todo What. Is. Going. On. With. This. Useless. Ternary. Operator? - mrpetovan
 	$o .= L10n::t('Starts:') . ' ' . '['
-		. (($ev['adjust']) ? day_translate(Temporal::convert($ev['start'], 'UTC', 'UTC', $bd_format))
-			:  day_translate(Temporal::convert($ev['start'], 'UTC', 'UTC', $bd_format))
+		. (($ev['adjust']) ? day_translate(Temporal::utc($ev['start'], $bd_format))
+			:  day_translate(Temporal::convert($ev['start'], $bd_format))
 		)
-		.  '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(Temporal::convert($ev['start'])) . ")\n";
+		.  '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(Temporal::utc($ev['start'])) . ")\n";
 
 	if (! $ev['nofinish']) {
 		$o .= L10n::t('Finishes:') . ' ' . '['
-			. (($ev['adjust']) ? day_translate(Temporal::convert($ev['finish'], 'UTC', 'UTC', $bd_format))
-				:  day_translate(Temporal::convert($ev['finish'], 'UTC', 'UTC', $bd_format))
+			. (($ev['adjust']) ? day_translate(Temporal::utc($ev['finish'], $bd_format))
+				:  day_translate(Temporal::utc($ev['finish'], $bd_format))
 			)
-			. '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(Temporal::convert($ev['finish'])) . ")\n";
+			. '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(Temporal::utc($ev['finish'])) . ")\n";
 	}
 
 	if (strlen($ev['location'])) {
diff --git a/include/event.php b/include/event.php
index c69bd50e07..faa0f9b9f7 100644
--- a/include/event.php
+++ b/include/event.php
@@ -26,13 +26,17 @@ function format_event_html($ev, $simple = false) {
 
 	$bd_format = L10n::t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM.
 
-	$event_start = (($ev['adjust']) ?
-		day_translate(Temporal::convert($ev['start'], date_default_timezone_get(), 'UTC', $bd_format))
-		: day_translate(Temporal::convert($ev['start'], 'UTC', 'UTC', $bd_format)));
+	$event_start = day_translate(
+		$ev['adjust'] ?
+			Temporal::convert($ev['start'], date_default_timezone_get(), 'UTC', $bd_format)
+			: Temporal::utc($ev['start'], $bd_format)
+	);
 
-	$event_end = (($ev['adjust']) ?
-		day_translate(Temporal::convert($ev['finish'] , date_default_timezone_get(), 'UTC', $bd_format ))
-		: day_translate(Temporal::convert($ev['finish'] , 'UTC', 'UTC', $bd_format )));
+	$event_end = day_translate(
+		$ev['adjust'] ?
+			Temporal::convert($ev['finish'], date_default_timezone_get(), 'UTC', $bd_format)
+			: Temporal::utc($ev['finish'], $bd_format)
+	);
 
 	if ($simple) {
 		$o = "<h3>" . bbcode($ev['summary']) . "</h3>";
@@ -57,13 +61,13 @@ function format_event_html($ev, $simple = false) {
 	$o .= '<div class="summary event-summary">' . bbcode($ev['summary']) . '</div>' . "\r\n";
 
 	$o .= '<div class="event-start"><span class="event-label">' . L10n::t('Starts:') . '</span>&nbsp;<span class="dtstart" title="'
-		. Temporal::convert($ev['start'], 'UTC', 'UTC', (($ev['adjust']) ? Temporal::ATOM : 'Y-m-d\TH:i:s' ))
+		. Temporal::utc($ev['start'], (($ev['adjust']) ? Temporal::ATOM : 'Y-m-d\TH:i:s' ))
 		. '" >'.$event_start
 		. '</span></div>' . "\r\n";
 
 	if (! $ev['nofinish']) {
 		$o .= '<div class="event-end" ><span class="event-label">' . L10n::t('Finishes:') . '</span>&nbsp;<span class="dtend" title="'
-			. Temporal::convert($ev['finish'], 'UTC', 'UTC', (($ev['adjust']) ? Temporal::ATOM : 'Y-m-d\TH:i:s' ))
+			. Temporal::utc($ev['finish'], (($ev['adjust']) ? Temporal::ATOM : 'Y-m-d\TH:i:s' ))
 			. '" >'.$event_end
 			. '</span></div>' . "\r\n";
 	}
@@ -591,15 +595,15 @@ function process_events($arr) {
 	$fmt = L10n::t('l, F j');
 	if (count($arr)) {
 		foreach ($arr as $rr) {
-			$j = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::convert($rr['start'], 'UTC', 'UTC', 'j'));
-			$d = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', $fmt) : Temporal::convert($rr['start'], 'UTC', 'UTC', $fmt));
+			$j = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::utc($rr['start'], 'j'));
+			$d = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', $fmt) : Temporal::utc($rr['start'], $fmt));
 			$d = day_translate($d);
 
-			$start = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'c') : Temporal::convert($rr['start'], 'UTC', 'UTC', 'c'));
+			$start = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'c') : Temporal::utc($rr['start'], 'c'));
 			if ($rr['nofinish']) {
 				$end = null;
 			} else {
-				$end = (($rr['adjust']) ? Temporal::convert($rr['finish'], date_default_timezone_get(), 'UTC', 'c') : Temporal::convert($rr['finish'], 'UTC', 'UTC', 'c'));
+				$end = (($rr['adjust']) ? Temporal::convert($rr['finish'], date_default_timezone_get(), 'UTC', 'c') : Temporal::utc($rr['finish'], 'c'));
 			}
 
 			$is_first = ($d !== $last_date);
@@ -924,22 +928,48 @@ function format_event_item($item) {
 	$tformat       = L10n::t('g:i A'); // 8:01 AM.
 
 	// Convert the time to different formats.
-	$dtstart_dt = (($item['event-adjust']) ? day_translate(Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', $dformat)) : day_translate(Temporal::convert($item['event-start'], 'UTC', 'UTC', $dformat)));
-	$dtstart_title = Temporal::convert($item['event-start'], 'UTC', 'UTC', (($item['event-adjust']) ? Temporal::ATOM : 'Y-m-d\TH:i:s'));
+	$dtstart_dt = day_translate(
+		$item['event-adjust'] ?
+			Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', $dformat)
+			: Temporal::utc($item['event-start'], $dformat)
+	);
+	$dtstart_title = Temporal::utc($item['event-start'], $item['event-adjust'] ? Temporal::ATOM : 'Y-m-d\TH:i:s');
 	// Format: Jan till Dec.
-	$month_short = (($item['event-adjust']) ? day_short_translate(Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', 'M')) : day_short_translate(Temporal::convert($item['event-start'], 'UTC', 'UTC', 'M')));
+	$month_short = day_short_translate(
+		$item['event-adjust'] ?
+			Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', 'M')
+			: Temporal::utc($item['event-start'], 'M')
+	);
 	// Format: 1 till 31.
-	$date_short = (($item['event-adjust']) ? Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::convert($item['event-start'], 'UTC', 'UTC', 'j'));
-	$start_time = (($item['event-adjust']) ? Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', $tformat) : Temporal::convert($item['event-start'], 'UTC', 'UTC', $tformat));
-	$start_short = (($item['event-adjust']) ? day_short_translate(Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', $dformat_short)) : day_short_translate(Temporal::convert($item['event-start'], 'UTC', 'UTC', $dformat_short)));
+	$date_short = $item['event-adjust'] ?
+		Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', 'j')
+		: Temporal::utc($item['event-start'], 'j');
+	$start_time = $item['event-adjust'] ?
+		Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', $tformat)
+		: Temporal::utc($item['event-start'], $tformat);
+	$start_short = day_short_translate(
+		$item['event-adjust'] ?
+			Temporal::convert($item['event-start'], date_default_timezone_get(), 'UTC', $dformat_short)
+			: Temporal::utc($item['event-start'], $dformat_short)
+	);
 
 	// If the option 'nofinisch' isn't set, we need to format the finish date/time.
 	if (!$item['event-nofinish']) {
 		$finish = true;
-		$dtend_dt  = (($item['event-adjust']) ? day_translate(Temporal::convert($item['event-finish'], date_default_timezone_get(), 'UTC', $dformat)) : day_translate(Temporal::convert($item['event-finish'], 'UTC', 'UTC', $dformat)));
-		$dtend_title = Temporal::convert($item['event-finish'], 'UTC', 'UTC', (($item['event-adjust'])   ? Temporal::ATOM : 'Y-m-d\TH:i:s'));
-		$end_short = (($item['event-adjust']) ? day_short_translate(Temporal::convert($item['event-finish'], date_default_timezone_get(), 'UTC', $dformat_short)) : day_short_translate(Temporal::convert($item['event-finish'], 'UTC', 'UTC', $dformat_short)));
-		$end_time = (($item['event-adjust']) ? Temporal::convert($item['event-finish'], date_default_timezone_get(), 'UTC', $tformat) : Temporal::convert($item['event-finish'], 'UTC', 'UTC', $tformat));
+		$dtend_dt  = day_translate(
+			$item['event-adjust'] ?
+				Temporal::convert($item['event-finish'], date_default_timezone_get(), 'UTC', $dformat)
+				: Temporal::utc($item['event-finish'], $dformat)
+		);
+		$dtend_title = Temporal::utc($item['event-finish'], $item['event-adjust']   ? Temporal::ATOM : 'Y-m-d\TH:i:s');
+		$end_short = day_short_translate(
+			$item['event-adjust'] ?
+				Temporal::convert($item['event-finish'], date_default_timezone_get(), 'UTC', $dformat_short)
+				: Temporal::utc($item['event-finish'], $dformat_short)
+		);
+		$end_time = $item['event-adjust'] ?
+			Temporal::convert($item['event-finish'], date_default_timezone_get(), 'UTC', $tformat)
+			: Temporal::utc($item['event-finish'], $tformat);
 		// Check if start and finish time is at the same day.
 		if (substr($dtstart_title, 0, 10) === substr($dtend_title, 0, 10)) {
 			$same_date = true;
diff --git a/include/items.php b/include/items.php
index a5ba0718b9..83b3484d0d 100644
--- a/include/items.php
+++ b/include/items.php
@@ -437,14 +437,14 @@ function list_post_dates($uid, $wall) {
 		$dyear = intval(substr($dnow, 0, 4));
 		$dstart = substr($dnow, 0, 8) . '01';
 		$dend = substr($dnow, 0, 8) . get_dim(intval($dnow), intval(substr($dnow, 5)));
-		$start_month = Temporal::convert($dstart, 'UTC', 'UTC', 'Y-m-d');
-		$end_month = Temporal::convert($dend, 'UTC', 'UTC', 'Y-m-d');
-		$str = day_translate(Temporal::convert($dnow, 'UTC', 'UTC', 'F'));
+		$start_month = Temporal::utc($dstart, 'Y-m-d');
+		$end_month = Temporal::utc($dend, 'Y-m-d');
+		$str = day_translate(Temporal::utc($dnow, 'F'));
 		if (!$ret[$dyear]) {
 			$ret[$dyear] = [];
 		}
 		$ret[$dyear][] = [$str, $end_month, $start_month];
-		$dnow = Temporal::convert($dnow . ' -1 month', 'UTC', 'UTC', 'Y-m-d');
+		$dnow = Temporal::utc($dnow . ' -1 month', 'Y-m-d');
 	}
 	return $ret;
 }
diff --git a/mod/cal.php b/mod/cal.php
index 71380373e5..10298aceea 100644
--- a/mod/cal.php
+++ b/mod/cal.php
@@ -203,8 +203,8 @@ function cal_content(App $a)
 			}
 		}
 
-		$start = Temporal::convert($start);
-		$finish = Temporal::convert($finish);
+		$start = Temporal::utc($start);
+		$finish = Temporal::utc($finish);
 
 		$adjust_start = Temporal::convert($start, date_default_timezone_get());
 		$adjust_finish = Temporal::convert($finish, date_default_timezone_get());
@@ -231,7 +231,7 @@ function cal_content(App $a)
 		if (DBM::is_result($r)) {
 			$r = sort_by_date($r);
 			foreach ($r as $rr) {
-				$j = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::convert($rr['start'], 'UTC', 'UTC', 'j'));
+				$j = $rr['adjust'] ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::utc($rr['start'], 'j');
 				if (!x($links, $j)) {
 					$links[$j] = System::baseUrl() . '/' . $a->cmd . '#link-' . $j;
 				}
diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
index 161cd4b1bd..6db198dcd2 100644
--- a/mod/dfrn_request.php
+++ b/mod/dfrn_request.php
@@ -241,7 +241,7 @@ function dfrn_request_post(App $a)
 		// Block friend request spam
 		if ($maxreq) {
 			$r = q("SELECT * FROM `intro` WHERE `datetime` > '%s' AND `uid` = %d",
-				dbesc(Temporal::convert('now - 24 hours')),
+				dbesc(Temporal::utc('now - 24 hours')),
 				intval($uid)
 			);
 			if (DBM::is_result($r) && count($r) > $maxreq) {
diff --git a/mod/events.php b/mod/events.php
index 703b1c0efc..9462b36b0c 100644
--- a/mod/events.php
+++ b/mod/events.php
@@ -81,9 +81,9 @@ function events_post(App $a) {
 			$finish = Temporal::convert($finish, 'UTC', date_default_timezone_get());
 		}
 	} else {
-		$start = Temporal::convert($start);
+		$start = Temporal::utc($start);
 		if (! $nofinish) {
-			$finish = Temporal::convert($finish);
+			$finish = Temporal::utc($finish);
 		}
 	}
 
@@ -323,8 +323,8 @@ function events_content(App $a) {
 			}
 		}
 
-		$start  = Temporal::convert($start);
-		$finish = Temporal::convert($finish);
+		$start  = Temporal::utc($start);
+		$finish = Temporal::utc($finish);
 
 		$adjust_start  = Temporal::convert($start, date_default_timezone_get());
 		$adjust_finish = Temporal::convert($finish, date_default_timezone_get());
@@ -351,7 +351,7 @@ function events_content(App $a) {
 		if (DBM::is_result($r)) {
 			$r = sort_by_date($r);
 			foreach ($r as $rr) {
-				$j = (($rr['adjust']) ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::convert($rr['start'], 'UTC', 'UTC', 'j'));
+				$j = $rr['adjust'] ? Temporal::convert($rr['start'], date_default_timezone_get(), 'UTC', 'j') : Temporal::utc($rr['start'], 'j');
 				if (! x($links,$j)) {
 					$links[$j] = System::baseUrl() . '/' . $a->cmd . '#link-' . $j;
 				}
diff --git a/mod/lostpass.php b/mod/lostpass.php
index a34562de7d..e3bea9db2e 100644
--- a/mod/lostpass.php
+++ b/mod/lostpass.php
@@ -92,7 +92,7 @@ function lostpass_content(App $a)
 		}
 
 		// Password reset requests expire in 60 minutes
-		if ($user['pwdreset_time'] < Temporal::convert('now - 1 hour')) {
+		if ($user['pwdreset_time'] < Temporal::utc('now - 1 hour')) {
 			$fields = [
 				'pwdreset' => null,
 				'pwdreset_time' => null
diff --git a/mod/ping.php b/mod/ping.php
index 9d5a6c4096..dd0817d0af 100644
--- a/mod/ping.php
+++ b/mod/ping.php
@@ -225,7 +225,7 @@ function ping_init(App $a)
 				WHERE `event`.`uid` = %d AND `start` < '%s' AND `finish` > '%s' and `ignore` = 0
 				ORDER BY `start` ASC ",
 				intval(local_user()),
-				dbesc(Temporal::convert('now + 7 days')),
+				dbesc(Temporal::utc('now + 7 days')),
 				dbesc(Temporal::utcNow())
 			);
 			if (DBM::is_result($ev)) {
diff --git a/mod/profiles.php b/mod/profiles.php
index 6206fdae3d..6dfc61f0a6 100644
--- a/mod/profiles.php
+++ b/mod/profiles.php
@@ -218,10 +218,11 @@ function profiles_post(App $a) {
 				$ignore_year = true;
 				$dob = substr($dob, 5);
 			}
-			$dob = Temporal::convert((($ignore_year) ? '1900-' . $dob : $dob), 'UTC', 'UTC', (($ignore_year) ? 'm-d' : 'Y-m-d'));
 
 			if ($ignore_year) {
-				$dob = '0000-' . $dob;
+				$dob = '0000-' . Temporal::utc('1900-' . $dob, 'm-d');
+			} else {
+				$dob = Temporal::utc($dob, 'Y-m-d');
 			}
 		}
 
diff --git a/src/Core/Cache.php b/src/Core/Cache.php
index f77319a46a..d6eeb4822b 100644
--- a/src/Core/Cache.php
+++ b/src/Core/Cache.php
@@ -165,21 +165,21 @@ class Cache
 		if (Config::get("system", "cache_cleared_day") < time() - self::duration(CACHE_DAY)) {
 			if ($max_level == CACHE_MONTH) {
 				$condition = ["`updated` < ? AND `expire_mode` = ?",
-						Temporal::convert("now - 30 days"),
+						Temporal::utc("now - 30 days"),
 						CACHE_MONTH];
 				dba::delete('cache', $condition);
 			}
 
 			if ($max_level <= CACHE_WEEK) {
 				$condition = ["`updated` < ? AND `expire_mode` = ?",
-						Temporal::convert("now - 7 days"),
+						Temporal::utc("now - 7 days"),
 						CACHE_WEEK];
 				dba::delete('cache', $condition);
 			}
 
 			if ($max_level <= CACHE_DAY) {
 				$condition = ["`updated` < ? AND `expire_mode` = ?",
-						Temporal::convert("now - 1 days"),
+						Temporal::utc("now - 1 days"),
 						CACHE_DAY];
 				dba::delete('cache', $condition);
 			}
@@ -188,7 +188,7 @@ class Cache
 
 		if (($max_level <= CACHE_HOUR) && (Config::get("system", "cache_cleared_hour")) < time() - self::duration(CACHE_HOUR)) {
 			$condition = ["`updated` < ? AND `expire_mode` = ?",
-					Temporal::convert("now - 1 hours"),
+					Temporal::utc("now - 1 hours"),
 					CACHE_HOUR];
 			dba::delete('cache', $condition);
 
@@ -197,7 +197,7 @@ class Cache
 
 		if (($max_level <= CACHE_HALF_HOUR) && (Config::get("system", "cache_cleared_half_hour")) < time() - self::duration(CACHE_HALF_HOUR)) {
 			$condition = ["`updated` < ? AND `expire_mode` = ?",
-					Temporal::convert("now - 30 minutes"),
+					Temporal::utc("now - 30 minutes"),
 					CACHE_HALF_HOUR];
 			dba::delete('cache', $condition);
 
@@ -206,7 +206,7 @@ class Cache
 
 		if (($max_level <= CACHE_QUARTER_HOUR) && (Config::get("system", "cache_cleared_quarter_hour")) < time() - self::duration(CACHE_QUARTER_HOUR)) {
 			$condition = ["`updated` < ? AND `expire_mode` = ?",
-					Temporal::convert("now - 15 minutes"),
+					Temporal::utc("now - 15 minutes"),
 					CACHE_QUARTER_HOUR];
 			dba::delete('cache', $condition);
 
@@ -215,7 +215,7 @@ class Cache
 
 		if (($max_level <= CACHE_FIVE_MINUTES) && (Config::get("system", "cache_cleared_five_minute")) < time() - self::duration(CACHE_FIVE_MINUTES)) {
 			$condition = ["`updated` < ? AND `expire_mode` = ?",
-					Temporal::convert("now - 5 minutes"),
+					Temporal::utc("now - 5 minutes"),
 					CACHE_FIVE_MINUTES];
 			dba::delete('cache', $condition);
 
@@ -224,7 +224,7 @@ class Cache
 
 		if (($max_level <= CACHE_MINUTE) && (Config::get("system", "cache_cleared_minute")) < time() - self::duration(CACHE_MINUTE)) {
 			$condition = ["`updated` < ? AND `expire_mode` = ?",
-					Temporal::convert("now - 1 minutes"),
+					Temporal::utc("now - 1 minutes"),
 					CACHE_MINUTE];
 			dba::delete('cache', $condition);
 
diff --git a/src/Core/Worker.php b/src/Core/Worker.php
index 8ff37c0195..8ea41c2ef9 100644
--- a/src/Core/Worker.php
+++ b/src/Core/Worker.php
@@ -953,7 +953,7 @@ class Worker
 
 		/// @todo We should clean up the corresponding workerqueue entries as well
 		$condition = ["`created` < ? AND `command` = 'worker.php'",
-				Temporal::convert("now - ".$timeout." minutes")];
+				Temporal::utc("now - ".$timeout." minutes")];
 		dba::delete('process', $condition);
 	}
 
diff --git a/src/Model/Contact.php b/src/Model/Contact.php
index 5afeebad4c..212da3334c 100644
--- a/src/Model/Contact.php
+++ b/src/Model/Contact.php
@@ -224,7 +224,7 @@ class Contact extends BaseObject
 
 			/// @todo Check for contact vitality via probing
 			$expiry = $contact['term-date'] . ' + 32 days ';
-			if (Temporal::utcNow() > Temporal::convert($expiry)) {
+			if (Temporal::utcNow() > Temporal::utc($expiry)) {
 				/* Relationship is really truly dead. archive them rather than
 				 * delete, though if the owner tries to unarchive them we'll start
 				 * the whole process over again.
@@ -688,7 +688,7 @@ class Contact extends BaseObject
 			$contact_id = $contact["id"];
 
 			// Update the contact every 7 days
-			$update_contact = ($contact['avatar-date'] < Temporal::convert('now -7 days'));
+			$update_contact = ($contact['avatar-date'] < Temporal::utc('now -7 days'));
 
 			// We force the update if the avatar is empty
 			if (!x($contact, 'avatar')) {
@@ -1485,7 +1485,7 @@ class Contact extends BaseObject
 			foreach ($r as $rr) {
 				logger('update_contact_birthday: ' . $rr['bd']);
 
-				$nextbd = Temporal::convert('Y') . substr($rr['bd'], 4);
+				$nextbd = Temporal::utcNow('Y') . substr($rr['bd'], 4);
 
 				/*
 				 * Add new birthday event for this person
@@ -1497,7 +1497,7 @@ class Contact extends BaseObject
 
 				// Check for duplicates
 				$s = q("SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
-					intval($rr['uid']), intval($rr['id']), dbesc(Temporal::convert($nextbd)), dbesc('birthday'));
+					intval($rr['uid']), intval($rr['id']), dbesc(Temporal::utc($nextbd)), dbesc('birthday'));
 
 				if (DBM::is_result($s)) {
 					continue;
@@ -1508,8 +1508,8 @@ class Contact extends BaseObject
 
 				q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`)
 				VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ", intval($rr['uid']), intval($rr['id']),
-					dbesc(Temporal::utcNow()), dbesc(Temporal::utcNow()), dbesc(Temporal::convert($nextbd)),
-					dbesc(Temporal::convert($nextbd . ' + 1 day ')), dbesc($bdtext), dbesc($bdtext2), dbesc('birthday'),
+					dbesc(Temporal::utcNow()), dbesc(Temporal::utcNow()), dbesc(Temporal::utc($nextbd)),
+					dbesc(Temporal::utc($nextbd . ' + 1 day ')), dbesc($bdtext), dbesc($bdtext2), dbesc('birthday'),
 					intval(0)
 				);
 
diff --git a/src/Model/Profile.php b/src/Model/Profile.php
index bdc64a8ac2..1cbe5b9b81 100644
--- a/src/Model/Profile.php
+++ b/src/Model/Profile.php
@@ -556,7 +556,7 @@ class Profile
 				WHERE `event`.`uid` = ? AND `type` = 'birthday' AND `start` < ? AND `finish` > ?
 				ORDER BY `start` ASC ",
 				local_user(),
-				Temporal::convert('now + 6 days'),
+				Temporal::utc('now + 6 days'),
 				Temporal::utcNow()
 			);
 			if (DBM::is_result($s)) {
@@ -644,8 +644,8 @@ class Profile
 			WHERE `event`.`uid` = ? AND `type` != 'birthday' AND `start` < ? AND `start` >= ?
 			ORDER BY `start` ASC ",
 			local_user(),
-			Temporal::convert('now + 7 days'),
-			Temporal::convert('now - 1 days')
+			Temporal::utc('now + 7 days'),
+			Temporal::utc('now - 1 days')
 		);
 
 		$r = [];
@@ -729,9 +729,11 @@ class Profile
 				$year_bd_format = L10n::t('j F, Y');
 				$short_bd_format = L10n::t('j F');
 
-				$val = intval($a->profile['dob']) ?
-					day_translate(Temporal::convert($a->profile['dob'] . ' 00:00 +00:00', 'UTC', 'UTC', $year_bd_format))
-					: day_translate(Temporal::convert('2001-' . substr($a->profile['dob'], 'UTC', 'UTC', 5) . ' 00:00 +00:00', $short_bd_format));
+				$val = day_translate(
+					intval($a->profile['dob']) ?
+						Temporal::utc($a->profile['dob'] . ' 00:00 +00:00', $year_bd_format)
+						: Temporal::utc('2001-' . substr($a->profile['dob'], 5) . ' 00:00 +00:00', $short_bd_format)
+				);
 
 				$profile['birthday'] = [L10n::t('Birthday:'), $val];
 			}
diff --git a/src/Module/Login.php b/src/Module/Login.php
index e922094d61..0a48392f88 100644
--- a/src/Module/Login.php
+++ b/src/Module/Login.php
@@ -222,7 +222,7 @@ class Login extends BaseModule
 				if (!x($_SESSION['last_login_date'])) {
 					$_SESSION['last_login_date'] = Temporal::utcNow();
 				}
-				if (strcmp(Temporal::convert('now - 12 hours'), $_SESSION['last_login_date']) > 0) {
+				if (strcmp(Temporal::utc('now - 12 hours'), $_SESSION['last_login_date']) > 0) {
 					$_SESSION['last_login_date'] = Temporal::utcNow();
 					$login_refresh = true;
 				}
diff --git a/src/Object/Post.php b/src/Object/Post.php
index 4797850a48..be3018cc94 100644
--- a/src/Object/Post.php
+++ b/src/Object/Post.php
@@ -301,7 +301,7 @@ class Post extends BaseObject
 
 		$comment = $this->getCommentBox($indent);
 
-		if (strcmp(Temporal::convert($item['created']), Temporal::convert('now - 12 hours')) > 0) {
+		if (strcmp(Temporal::utc($item['created']), Temporal::utc('now - 12 hours')) > 0) {
 			$shiny = 'shiny';
 		}
 
diff --git a/src/Protocol/DFRN.php b/src/Protocol/DFRN.php
index 998a6022f3..9eb226689f 100644
--- a/src/Protocol/DFRN.php
+++ b/src/Protocol/DFRN.php
@@ -229,7 +229,7 @@ class DFRN
 			}
 		}
 
-		$check_date = Temporal::convert($last_update);
+		$check_date = Temporal::utc($last_update);
 
 		$r = q(
 			"SELECT `item`.*, `item`.`id` AS `item_id`,
@@ -421,7 +421,7 @@ class DFRN
 
 		XML::addElement($doc, $mail, "dfrn:id", $item['uri']);
 		XML::addElement($doc, $mail, "dfrn:in-reply-to", $item['parent-uri']);
-		XML::addElement($doc, $mail, "dfrn:sentdate", Temporal::convert($item['created'] . '+00:00', 'UTC', 'UTC', Temporal::ATOM));
+		XML::addElement($doc, $mail, "dfrn:sentdate", Temporal::utc($item['created'] . '+00:00', Temporal::ATOM));
 		XML::addElement($doc, $mail, "dfrn:subject", $item['title']);
 		XML::addElement($doc, $mail, "dfrn:content", $item['body']);
 
@@ -587,7 +587,7 @@ class DFRN
 
 		/// @todo We need a way to transmit the different page flags like "PAGE_PRVGROUP"
 
-		XML::addElement($doc, $root, "updated", Temporal::convert("now", "UTC", "UTC", Temporal::ATOM));
+		XML::addElement($doc, $root, "updated", Temporal::utcNow(Temporal::ATOM));
 
 		$author = self::addAuthor($doc, $owner, $authorelement, $public);
 		$root->appendChild($author);
@@ -622,9 +622,9 @@ class DFRN
 
 		$author = $doc->createElement($authorelement);
 
-		$namdate = Temporal::convert($owner['name-date'].'+00:00', 'UTC', 'UTC', Temporal::ATOM);
-		$uridate = Temporal::convert($owner['uri-date'].'+00:00', 'UTC', 'UTC', Temporal::ATOM);
-		$picdate = Temporal::convert($owner['avatar-date'].'+00:00', 'UTC', 'UTC', Temporal::ATOM);
+		$namdate = Temporal::utc($owner['name-date'].'+00:00', Temporal::ATOM);
+		$uridate = Temporal::utc($owner['uri-date'].'+00:00', Temporal::ATOM);
+		$picdate = Temporal::utc($owner['avatar-date'].'+00:00', Temporal::ATOM);
 
 		$attributes = [];
 
@@ -903,7 +903,7 @@ class DFRN
 		}
 
 		if ($item['deleted']) {
-			$attributes = ["ref" => $item['uri'], "when" => Temporal::convert($item['edited'] . '+00:00', 'UTC', 'UTC', Temporal::ATOM)];
+			$attributes = ["ref" => $item['uri'], "when" => Temporal::utc($item['edited'] . '+00:00', Temporal::ATOM)];
 			return XML::createElement($doc, "at:deleted-entry", "", $attributes);
 		}
 
@@ -983,8 +983,8 @@ class DFRN
 		XML::addElement($doc, $entry, "id", $item["uri"]);
 		XML::addElement($doc, $entry, "title", $item["title"]);
 
-		XML::addElement($doc, $entry, "published", Temporal::convert($item["created"] . "+00:00", "UTC", "UTC", Temporal::ATOM));
-		XML::addElement($doc, $entry, "updated", Temporal::convert($item["edited"] . "+00:00", "UTC", "UTC", Temporal::ATOM));
+		XML::addElement($doc, $entry, "published", Temporal::utc($item["created"] . "+00:00", Temporal::ATOM));
+		XML::addElement($doc, $entry, "updated", Temporal::utc($item["edited"] . "+00:00", Temporal::ATOM));
 
 		// "dfrn:env" is used to read the content
 		XML::addElement($doc, $entry, "dfrn:env", base64url_encode($body, true));
@@ -1388,7 +1388,7 @@ class DFRN
 			"SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
 			intval($contact["uid"]),
 			intval($contact["id"]),
-			dbesc(Temporal::convert($birthday)),
+			dbesc(Temporal::utc($birthday)),
 			dbesc("birthday")
 		);
 
@@ -1408,8 +1408,8 @@ class DFRN
 			intval($contact["id"]),
 			dbesc(Temporal::utcNow()),
 			dbesc(Temporal::utcNow()),
-			dbesc(Temporal::convert($birthday)),
-			dbesc(Temporal::convert($birthday . " + 1 day ")),
+			dbesc(Temporal::utc($birthday)),
+			dbesc(Temporal::utc($birthday . " + 1 day ")),
 			dbesc($bdtext),
 			dbesc($bdtext2),
 			dbesc("birthday")
@@ -2081,13 +2081,13 @@ class DFRN
 
 		if (self::isEditedTimestampNewer($current, $item)) {
 			// do not accept (ignore) an earlier edit than one we currently have.
-			if (Temporal::convert($item["edited"]) < $current["edited"]) {
+			if (Temporal::utc($item["edited"]) < $current["edited"]) {
 				return false;
 			}
 
 			$fields = ['title' => $item["title"], 'body' => $item["body"],
 					'tag' => $item["tag"], 'changed' => Temporal::utcNow(),
-					'edited' => Temporal::convert($item["edited"])];
+					'edited' => Temporal::utc($item["edited"])];
 
 			$condition = ["`uri` = ? AND `uid` IN (0, ?)", $item["uri"], $importer["importer_uid"]];
 			dba::update('item', $fields, $condition);
@@ -2422,7 +2422,7 @@ class DFRN
 
 		// Is there an existing item?
 		if (DBM::is_result($current) && self::isEditedTimestampNewer($current[0], $item)
-			&& (Temporal::convert($item["edited"]) < $current[0]["edited"])
+			&& (Temporal::utc($item["edited"]) < $current[0]["edited"])
 		) {
 			logger("Item ".$item["uri"]." already existed.", LOGGER_DEBUG);
 			return;
@@ -2753,9 +2753,9 @@ class DFRN
 			}
 		}
 		if ($when) {
-			$when = Temporal::convert($when);
+			$when = Temporal::utc($when);
 		} else {
-			$when = Temporal::convert("now");
+			$when = Temporal::utcNow();
 		}
 
 		if (!$uri || !$importer["id"]) {
@@ -3157,8 +3157,8 @@ class DFRN
 			return false;
 		}
 
-		$existing_edited = Temporal::convert($existing['edited']);
-		$update_edited = Temporal::convert($update['edited']);
+		$existing_edited = Temporal::utc($existing['edited']);
+		$update_edited = Temporal::utc($update['edited']);
 
 		return (strcmp($existing_edited, $update_edited) < 0);
 	}
diff --git a/src/Protocol/Diaspora.php b/src/Protocol/Diaspora.php
index afd7359650..077c93c292 100644
--- a/src/Protocol/Diaspora.php
+++ b/src/Protocol/Diaspora.php
@@ -1654,7 +1654,7 @@ class Diaspora
 		$text = unxmlify($data->text);
 
 		if (isset($data->created_at)) {
-			$created_at = Temporal::convert(notags(unxmlify($data->created_at)));
+			$created_at = Temporal::utc(notags(unxmlify($data->created_at)));
 		} else {
 			$created_at = Temporal::utcNow();
 		}
@@ -1786,7 +1786,7 @@ class Diaspora
 		$msg_guid = notags(unxmlify($mesg->guid));
 		$msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
 		$msg_text = unxmlify($mesg->text);
-		$msg_created_at = Temporal::convert(notags(unxmlify($mesg->created_at)));
+		$msg_created_at = Temporal::utc(notags(unxmlify($mesg->created_at)));
 
 		if ($msg_conversation_guid != $guid) {
 			logger("message conversation guid does not belong to the current conversation.");
@@ -1865,7 +1865,7 @@ class Diaspora
 		$author = notags(unxmlify($data->author));
 		$guid = notags(unxmlify($data->guid));
 		$subject = notags(unxmlify($data->subject));
-		$created_at = Temporal::convert(notags(unxmlify($data->created_at)));
+		$created_at = Temporal::utc(notags(unxmlify($data->created_at)));
 		$participants = notags(unxmlify($data->participants));
 
 		$messages = $data->message;
@@ -2098,7 +2098,7 @@ class Diaspora
 		$guid = notags(unxmlify($data->guid));
 		$conversation_guid = notags(unxmlify($data->conversation_guid));
 		$text = unxmlify($data->text);
-		$created_at = Temporal::convert(notags(unxmlify($data->created_at)));
+		$created_at = Temporal::utc(notags(unxmlify($data->created_at)));
 
 		$contact = self::allowedContactByHandle($importer, $author, true);
 		if (!$contact) {
@@ -2315,7 +2315,7 @@ class Diaspora
 		$birthday = str_replace("1000", "1901", $birthday);
 
 		if ($birthday != "") {
-			$birthday = Temporal::convert($birthday, "UTC", "UTC", "Y-m-d");
+			$birthday = Temporal::utc($birthday, "Y-m-d");
 		}
 
 		// this is to prevent multiple birthday notifications in a single year
@@ -2716,7 +2716,7 @@ class Diaspora
 	{
 		$author = notags(unxmlify($data->author));
 		$guid = notags(unxmlify($data->guid));
-		$created_at = Temporal::convert(notags(unxmlify($data->created_at)));
+		$created_at = Temporal::utc(notags(unxmlify($data->created_at)));
 		$root_author = notags(unxmlify($data->root_author));
 		$root_guid = notags(unxmlify($data->root_guid));
 		/// @todo handle unprocessed property "provider_display_name"
@@ -2930,7 +2930,7 @@ class Diaspora
 	{
 		$author = notags(unxmlify($data->author));
 		$guid = notags(unxmlify($data->guid));
-		$created_at = Temporal::convert(notags(unxmlify($data->created_at)));
+		$created_at = Temporal::utc(notags(unxmlify($data->created_at)));
 		$public = notags(unxmlify($data->public));
 		$text = unxmlify($data->text);
 		$provider_display_name = notags(unxmlify($data->provider_display_name));
@@ -3652,7 +3652,7 @@ class Diaspora
 
 		$public = (($item["private"]) ? "false" : "true");
 
-		$created = Temporal::convert($item["created"], "UTC", "UTC", Temporal::ATOM);
+		$created = Temporal::utc($item["created"], Temporal::ATOM);
 
 		// Detect a share element and do a reshare
 		if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
@@ -3855,7 +3855,7 @@ class Diaspora
 		$parent = $p[0];
 
 		$text = html_entity_decode(bb2diaspora($item["body"]));
-		$created = Temporal::convert($item["created"], "UTC", "UTC", Temporal::ATOM);
+		$created = Temporal::utc($item["created"], Temporal::ATOM);
 
 		$comment = ["author" => self::myHandle($owner),
 				"guid" => $item["guid"],
@@ -4086,12 +4086,12 @@ class Diaspora
 			"author" => $cnv["creator"],
 			"guid" => $cnv["guid"],
 			"subject" => $cnv["subject"],
-			"created_at" => Temporal::convert($cnv['created'], "UTC", "UTC", Temporal::ATOM),
+			"created_at" => Temporal::utc($cnv['created'], Temporal::ATOM),
 			"participants" => $cnv["recips"]
 		];
 
 		$body = bb2diaspora($item["body"]);
-		$created = Temporal::convert($item["created"], "UTC", "UTC", Temporal::ATOM);
+		$created = Temporal::utc($item["created"], Temporal::ATOM);
 
 		$msg = [
 			"author" => $myaddr,
@@ -4109,7 +4109,7 @@ class Diaspora
 					"author" => $cnv["creator"],
 					"guid" => $cnv["guid"],
 					"subject" => $cnv["subject"],
-					"created_at" => Temporal::convert($cnv['created'], "UTC", "UTC", Temporal::ATOM),
+					"created_at" => Temporal::utc($cnv['created'], Temporal::ATOM),
 					"participants" => $cnv["recips"],
 					"message" => $msg];
 
@@ -4217,7 +4217,7 @@ class Diaspora
 				if ($year < 1004) {
 					$year = 1004;
 				}
-				$dob = Temporal::convert($year . '-' . $month . '-'. $day, 'UTC', 'UTC', 'Y-m-d');
+				$dob = Temporal::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
 			}
 
 			$about = $profile['about'];
diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index c98b8ddec0..0583e0ceef 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -1273,7 +1273,7 @@ class OStatus
 		XML::addElement($doc, $root, "title", $title);
 		XML::addElement($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
 		XML::addElement($doc, $root, "logo", $owner["photo"]);
-		XML::addElement($doc, $root, "updated", Temporal::convert("now", "UTC", "UTC", Temporal::ATOM));
+		XML::addElement($doc, $root, "updated", Temporal::utcNow(Temporal::ATOM));
 
 		$author = self::addAuthor($doc, $owner);
 		$root->appendChild($author);
@@ -1539,7 +1539,7 @@ class OStatus
 		XML::addElement($doc, $source, "link", "", ["rel" => "alternate", "type" => "text/html", "href" => $contact["alias"]]);
 		XML::addElement($doc, $source, "link", "", ["rel" => "self", "type" => "application/atom+xml", "href" => $contact["poll"]]);
 		XML::addElement($doc, $source, "icon", $contact["photo"]);
-		XML::addElement($doc, $source, "updated", Temporal::convert($contact["success_update"]."+00:00", "UTC", "UTC", Temporal::ATOM));
+		XML::addElement($doc, $source, "updated", Temporal::utc($contact["success_update"]."+00:00", Temporal::ATOM));
 
 		return $source;
 	}
@@ -1923,8 +1923,8 @@ class OStatus
 
 		XML::addElement($doc, $entry, "activity:verb", $verb);
 
-		XML::addElement($doc, $entry, "published", Temporal::convert($item["created"]."+00:00", "UTC", "UTC", Temporal::ATOM));
-		XML::addElement($doc, $entry, "updated", Temporal::convert($item["edited"]."+00:00", "UTC", "UTC", Temporal::ATOM));
+		XML::addElement($doc, $entry, "published", Temporal::utc($item["created"]."+00:00", Temporal::ATOM));
+		XML::addElement($doc, $entry, "updated", Temporal::utc($item["edited"]."+00:00", Temporal::ATOM));
 	}
 
 	/**
@@ -2127,7 +2127,7 @@ class OStatus
 			$last_update = 'now -30 days';
 		}
 
-		$check_date = Temporal::convert($last_update);
+		$check_date = Temporal::utc($last_update);
 		$authorid = Contact::getIdForURL($owner["url"], 0);
 
 		$sql_extra = '';
diff --git a/src/Util/Temporal.php b/src/Util/Temporal.php
index eb0bbeb8e0..a2d4677f29 100644
--- a/src/Util/Temporal.php
+++ b/src/Util/Temporal.php
@@ -113,7 +113,7 @@ class Temporal
 	 */
 	public static function getTimezoneField($name = 'timezone', $label = '', $current = 'America/Los_Angeles', $help = '')
 	{
-		$options = Temporal::getTimezoneSelect($current);
+		$options = self::getTimezoneSelect($current);
 		$options = str_replace('<select id="timezone_select" name="timezone">', '', $options);
 		$options = str_replace('</select>', '', $options);
 
@@ -123,6 +123,18 @@ class Temporal
 		]);
 	}
 
+	/**
+	 * convert() shorthand for UTC.
+	 *
+	 * @param string $time   A date/time string
+	 * @param string $format DateTime format string or Temporal constant
+	 * @return string
+	 */
+	public static function utc($time, $format = self::MYSQL)
+	{
+		return self::convert($time, 'UTC', 'UTC', $format);
+	}
+
 	/**
 	 * convert() shorthand for UTC now.
 	 *
@@ -209,7 +221,7 @@ class Temporal
 		if ($dob < '0000-01-01') {
 			$value = '';
 		} else {
-			$value = Temporal::convert(($year > 1000) ? $dob : '1000-' . $month . '-' . $day, 'UTC', 'UTC', 'Y-m-d');
+			$value = self::utc(($year > 1000) ? $dob : '1000-' . $month . '-' . $day, 'Y-m-d');
 		}
 
 		$age = (intval($value) ? age($value, $a->user["timezone"], $a->user["timezone"]) : "");
@@ -445,11 +457,11 @@ class Temporal
 			$viewer_tz = date_default_timezone_get();
 		}
 
-		$birthdate = Temporal::convert($dob . ' 00:00:00+00:00', $owner_tz, 'UTC', 'Y-m-d');
+		$birthdate = self::convert($dob . ' 00:00:00+00:00', $owner_tz, 'UTC', 'Y-m-d');
 		list($year, $month, $day) = explode("-", $birthdate);
-		$year_diff = Temporal::convert('now', $viewer_tz, 'UTC', 'Y') - $year;
-		$curr_month = Temporal::convert('now', $viewer_tz, 'UTC', 'm');
-		$curr_day = Temporal::convert('now', $viewer_tz, 'UTC', 'd');
+		$year_diff = self::convert('now', $viewer_tz, 'UTC', 'Y') - $year;
+		$curr_month = self::convert('now', $viewer_tz, 'UTC', 'm');
+		$curr_day = self::convert('now', $viewer_tz, 'UTC', 'd');
 
 		if (($curr_month < $month) || (($curr_month == $month) && ($curr_day < $day))) {
 			$year_diff--;
@@ -489,7 +501,7 @@ class Temporal
 	{
 		$d = sprintf('%04d-%02d-01 00:00', intval($y), intval($m));
 
-		return Temporal::convert($d, 'UTC', 'UTC', 'w');
+		return self::utc($d, 'w');
 	}
 
 	/**
@@ -519,8 +531,8 @@ class Temporal
 			'October', 'November', 'December'
 		];
 
-		$thisyear = Temporal::convert('now', date_default_timezone_get(), 'UTC', 'Y');
-		$thismonth = Temporal::convert('now', date_default_timezone_get(), 'UTC', 'm');
+		$thisyear = self::convert('now', date_default_timezone_get(), 'UTC', 'Y');
+		$thismonth = self::convert('now', date_default_timezone_get(), 'UTC', 'm');
 		if (!$y) {
 			$y = $thisyear;
 		}
@@ -537,7 +549,7 @@ class Temporal
 		$started = false;
 
 		if (($y == $thisyear) && ($m == $thismonth)) {
-			$tddate = intval(Temporal::convert('now', date_default_timezone_get(), 'UTC', 'j'));
+			$tddate = intval(self::convert('now', date_default_timezone_get(), 'UTC', 'j'));
 		}
 
 		$str_month = day_translate($mtab[$m]);
diff --git a/src/Worker/Cron.php b/src/Worker/Cron.php
index 07ddf8bee4..9c68a7feaf 100644
--- a/src/Worker/Cron.php
+++ b/src/Worker/Cron.php
@@ -218,33 +218,33 @@ Class Cron {
 				 */
 				switch ($contact['priority']) {
 					case 5:
-						if (Temporal::utcNow() > Temporal::convert($t . " + 1 month")) {
+						if (Temporal::utcNow() > Temporal::utc($t . " + 1 month")) {
 							$update = true;
 						}
 						break;
 					case 4:
-						if (Temporal::utcNow() > Temporal::convert($t . " + 1 week")) {
+						if (Temporal::utcNow() > Temporal::utc($t . " + 1 week")) {
 							$update = true;
 						}
 						break;
 					case 3:
-						if (Temporal::utcNow() > Temporal::convert($t . " + 1 day")) {
+						if (Temporal::utcNow() > Temporal::utc($t . " + 1 day")) {
 							$update = true;
 						}
 						break;
 					case 2:
-						if (Temporal::utcNow() > Temporal::convert($t . " + 12 hour")) {
+						if (Temporal::utcNow() > Temporal::utc($t . " + 12 hour")) {
 							$update = true;
 						}
 						break;
 					case 1:
-						if (Temporal::utcNow() > Temporal::convert($t . " + 1 hour")) {
+						if (Temporal::utcNow() > Temporal::utc($t . " + 1 hour")) {
 							$update = true;
 						}
 						break;
 					case 0:
 					default:
-						if (Temporal::utcNow() > Temporal::convert($t . " + ".$min_poll_interval." minute")) {
+						if (Temporal::utcNow() > Temporal::utc($t . " + ".$min_poll_interval." minute")) {
 							$update = true;
 						}
 						break;
diff --git a/src/Worker/OnePoll.php b/src/Worker/OnePoll.php
index 6e69bc3aa8..0a39aafecb 100644
--- a/src/Worker/OnePoll.php
+++ b/src/Worker/OnePoll.php
@@ -99,7 +99,7 @@ class OnePoll
 			$contact['priority'] = intval($poll_interval);
 			$hub_update = false;
 
-			if (Temporal::utcNow() > Temporal::convert($t . " + 1 day")) {
+			if (Temporal::utcNow() > Temporal::utc($t . " + 1 day")) {
 				$hub_update = true;
 			}
 		} else {
@@ -107,8 +107,8 @@ class OnePoll
 		}
 
 		$last_update = (($contact['last-update'] <= NULL_DATE)
-			? Temporal::convert('now - 7 days', 'UTC', 'UTC', Temporal::ATOM)
-			: Temporal::convert($contact['last-update'], 'UTC', 'UTC', Temporal::ATOM)
+			? Temporal::utc('now - 7 days', Temporal::ATOM)
+			: Temporal::utc($contact['last-update'], Temporal::ATOM)
 		);
 
 		// Update the contact entry
@@ -459,7 +459,7 @@ class OnePoll
 							$datarray['title'] = notags(trim($datarray['title']));
 
 							//$datarray['title'] = notags(trim($meta->subject));
-							$datarray['created'] = Temporal::convert($meta->date);
+							$datarray['created'] = Temporal::utc($meta->date);
 
 							// Is it a reply?
 							$reply = ((substr(strtolower($datarray['title']), 0, 3) == "re:") ||