my timezone is +2 hours from UK
in 1/1/1970 02:00:00 it started counting the ctime here
at the same moment, in UK, it was 00:00:00 and it start counting too
so it seems that until now, the duration here and there was the same
The ctime in your location didn't start at '1/1/1970 02:00:00', it started at 1/1/1970 00:00:00 your local time, so when the ctime in the UK began, your local ctime would have been 2 hour into the count, or 7,200 seconds.
