What time zone does the camera uses?

If I am traveling to a different time zone, does the camera record per its own time zone or does it shift to the one that I am in? Since I program the recording time via my cell phone, which will shift to wherever time zone that I am in.

Mine stay as set. I’ve 2 cams in EDT and I’m viewing from CDT. When accessed they pop up a blurb asking if I want to sync the camera time with the phone time.