/** * Test for False Month Addition */ public function testAddingMonthWhenChangingTimezone() { $date = new Date(mktime(22, 59, 59, 1, 10, 2009)); $this->assertEquals(10, $date->toString('d')); $this->assertEquals(1, $date->toString('M')); $date->setTimezone('Europe/Berlin'); $date->addMonth(1); $this->assertEquals(10, $date->toString('d')); $this->assertEquals(2, $date->toString('M')); }