2.4.5

includes/libraries/action-scheduler/classes/ActionScheduler_DateTime.php

@@ -7,6 +7,16 @@
  */
 class ActionScheduler_DateTime extends DateTime {
 
+	/**
+	 * UTC offset.
+	 *
+	 * Only used when a timezone is not set. When a timezone string is
+	 * used, this will be set to 0.
+	 *
+	 * @var int
+	 */
+	protected $utcOffset = 0;
+
 	/**
 	 * Get the unix timestamp of the current object.
 	 *
@@ -17,4 +27,50 @@ class ActionScheduler_DateTime extends DateTime {
 	public function getTimestamp() {
 		return method_exists( 'DateTime', 'getTimestamp' ) ? parent::getTimestamp() : $this->format( 'U' );
 	}
+
+	/**
+	 * Set the UTC offset.
+	 *
+	 * This represents a fixed offset instead of a timezone setting.
+	 *
+	 * @param $offset
+	 */
+	public function setUtcOffset( $offset ) {
+		$this->utcOffset = intval( $offset );
+	}
+
+	/**
+	 * Returns the timezone offset.
+	 *
+	 * @return int
+	 * @link http://php.net/manual/en/datetime.getoffset.php
+	 */
+	public function getOffset() {
+		return $this->utcOffset ? $this->utcOffset : parent::getOffset();
+	}
+
+	/**
+	 * Set the TimeZone associated with the DateTime
+	 *
+	 * @param DateTimeZone $timezone
+	 *
+	 * @return static
+	 * @link http://php.net/manual/en/datetime.settimezone.php
+	 */
+	public function setTimezone( $timezone ) {
+		$this->utcOffset = 0;
+		parent::setTimezone( $timezone );
+
+		return $this;
+	}
+
+	/**
+	 * Get the timestamp with the WordPress timezone offset added or subtracted.
+	 *
+	 * @since  3.0.0
+	 * @return int
+	 */
+	public function getOffsetTimestamp() {
+		return $this->getTimestamp() + $this->getOffset();
+	}
 }