Merge pull request #64 from discoinfiltrator/master

Force the nextrun calculation to use UTC to be consistent with the DB

inc/class-job.php

@@ -2,6 +2,9 @@
 
 namespace HM\Cavalcade\Runner;
 
+use DateInterval;
+use DateTime;
+use DateTimeZone;
 use PDO;
 
 const MYSQL_DATE_FORMAT = 'Y-m-d H:i:s';
@@ -81,8 +84,11 @@ public function mark_completed() {
 	}
 
 	public function reschedule() {
-		$this->nextrun = date( MYSQL_DATE_FORMAT, strtotime( $this->nextrun ) + $this->interval );
-		$this->status  = 'waiting';
+		$date = new DateTime( $this->nextrun, new DateTimeZone( 'UTC' ) );
+		$date->add( new DateInterval( "PT{$this->interval}S" ) );
+		$this->nextrun = $date->format( MYSQL_DATE_FORMAT );
+
+		$this->status = 'waiting';
 
 		$query = "UPDATE {$this->table_prefix}cavalcade_jobs";
 		$query .= ' SET status = :status, nextrun = :nextrun';