> Date: Tuesday, October 25, 2016 14:10:21 +0000 > From: Cliff Nieuwenhuis <c.nieuwenhuis@xxxxxxxxxxxxxx> > > This is a stripped-down version of a calendar program. Can anyone > explain why November 6 2016 appears twice? Or 2015-11-01? > > I'm assuming the fault lies with > > $calday = $calday + (60 * 60 * 24); > > ...but I'd like to know why some days apparently have less than > 86400 seconds and how (efficiently) to work around that. > DST. On both 2015-11-01 and 2016-11-06 the US switched back to standard time. Look at: <http://php.net/manual/en/function.date.php> I (capital i) Whether or not the date is in daylight saving time -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php