I recently got a 5D IV and just noticed that capture times on video files shows 5 hours ahead in Lightroom (photos are fine). This causes videos taken late in the day to be imported into the folder for the next day. I'm running the latest Lightroom (6.10) and 5D Firmware (1.04). I checked my old 5D Mark III videos and they are fine.
I suspect Lightroom ins't picking up the timezone info and is using UTC time. Is this a bug?
ExifTool shows all the dates in the video as 2017:11:25 21:11:01 (9:11 pm 11/25/17). Clearly the video was taken during the day (great dog!) -- assuming you're in PST (UTC - 8), you took it at 1:11 pm?
It looks like the Samsung/Android software strictly obeyed the spec and recorded the capture date in UTC. And there is no time zone or indication of local time recorded in non-standard fields in the video. There are (at least) a few ways that Adobe could improve this situation (caused by Apple