Since version 2.4.0, I've had trouble updating the timestamp of my videos (I haven't tried with pictures, so can't confirm whether it does affect them also). I set a date, time, and timezone, but when accepting it, the timezone information is removed. Instead, it shows as UTC and the timezone difference is added to the timestamp. This is really screwing with the ordering. Some videos even show up in different days. I've tried manually modifying the xmp files to add the timezone. I need to manually update the metadata from the video in the web interface, and that seems to fix the ordering, but the Timezone information still shows incorrectly as UTC.