PREAMBLE Let say you make a quicktime video at t, in a country which time zone is tz with a device set to the local time. According the type of the device (smartphone, digital camera, ...), time written into metadata (tmd) by the device will be : 1) tmd = t - tz ; no time zone metadata set 2) tmd = t - tz ; time zone metadata = UTC 3) tmd = t - tz ; time zone metadata = tz # I don't know if there are devices doing that 4) tmd = t # digital cameras which are not able to get by itself the current tz (or don't let you set the current tz) DESIRED BEHAVIOR I would like to rename the video with the local time of the shooting using, for example, [date:yyyy-MM-dd_hh'h'mm-ss] pattern regardless of the tz of the pc where digikam is running. It seems to be a logical use case. CURRENT DIGIKAM RENAMING BEHAVIOR Let say T is the time digikam will use to build the filename and pctz the current time zone of the computer where digikam is running. For some devices such as android devices : T = tmd + time zone metadata if it exists (mdtz) + pctz For others devices : T = tmd So, if you make a video at 10:00:00 local time with an android device (which doesn't set mdtz or set mdtz = UTC) traveling in a country where time zone is UTC-5 and you want to rename the filename of the video when you come back to your country of residence which time zone is UTC+1, you will get a filename with 16:00:00 time, no 10:00:00. The only way to get it would be to modify the metadata time of the video to 09:00:00 (instead of 15:00:00) so that digikam produces the desired 10:00:00 time. WISH Add an optional time zone field to the renaming dialog to indicate the time zone to use for renaming (if empty, digikam would use pctz).
It's not entirely clear to me what exactly you want. Do you want to enter the time zone manually? digiKam currently does not store a time zone offset. Current cameras save the time zone offset, the Exif tags are relatively new. We already have requests to support this. But I have never seen a time zone offset in videos, only the information whether UTC. It is true that Android devices usually save them in UTC. Maik
> digiKam currently does not store a time zone offset. There is a misunderstanding : I don't want store time zone offset into metadata. WISH : Add an optional time zone field to the renaming dialog to indicate the time zone to use for renaming (if empty, digikam would use pctz). It is about a dialog field to rename a file according to the TZ of shooting instead the TZ of the computer where Digikam is running, as described into the DESIRED BEHAVIOR part.