when i take a picture and put the sdcard in my Ubuntu 18.10, the picture date is 6-hrs ago. but if i look at it in my panasonic camera, the time is correct. if i look at it in windows, the time is correct. if i try a different camera, a canon, and different sdcard, same thing, 6-hrs earlier. date and time on Ubuntu is correct. date and time on the cameras are correct. i tried formatting the sdcards. what's going on?
My time zone is CST, central.