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function is not described

CronExpression_HoursField::increment() public WC 1.0


{} It's a method of the class: CronExpression_HoursField{}

No Hooks.


null. Nothing.


$CronExpression_HoursField = new CronExpression_HoursField();
$CronExpression_HoursField->increment( $date, $invert );
$date(DateTime) (required)
$invert **
Default: false

Code of CronExpression_HoursField::increment() WC 6.1.1

public function increment(DateTime $date, $invert = false)
    // Change timezone to UTC temporarily. This will
    // allow us to go back or forwards and hour even
    // if DST will be changed between the hours.
    $timezone = $date->getTimezone();
    $date->setTimezone(new DateTimeZone('UTC'));
    if ($invert) {
        $date->modify('-1 hour');
        $date->setTime($date->format('H'), 59);
    } else {
        $date->modify('+1 hour');
        $date->setTime($date->format('H'), 0);

    return $this;