Am 02.07.2014 um 16:59 schrieb Carsten Kurz: I can answer this myself now: DCP-o-matic is properly using and converting local time (at least in windows) for email transmission text and KDM: Email: ---- Im Anhang finden Sie die KDM fuer den Film Lebensfilm_FTR-1-25_F-178_DE-XX_DE-FSK0_51_2K_AVS_20140709_AVS_SMPTE_OV. Der Schluessel ist vom 2014-Jul-16 04:59:11 bis zum 2014-Jul-23 04:59:11 gueltig fuer: --- KDM: --- <ContentKeysNotValidBefore>2014-07-16T04:59:11+02:00</ContentKeysNotValidBefore> <ContentKeysNotValidAfter>2014-07-23T04:59:11+02:00</ContentKeysNotValidAfter> --- This is for germany, so currently +02:00 is correct for central european summer time. I also like the '2014-Jul-23' format in the KDM email text, because it prevents the typical 1-12-2014 and 12-1-2014 cross-country confusion. But bear in mind, if you are sending/issuing a KDM for playout in a different time zone, that it will be referenced typically to YOUR local time, not the playout location's local time. If you want to be sure, temporarily set your computers time zone identical to the playout locations time zone, create the KDM/Email, then set it back. Even better - never issue KDM time frames that could cause prohibitive playout windows due to time zone differences. Always allow at least 1-2 days safe margin head and tail. - Carsten