Maybe Nefarious can clarify the time zones from this post.
It's a UNIX time stamp value. Whatever your local time is on your browser, that's what time will show.
Somebody graciously explained to me how to do it recently. Using these brackets [time]---[/time] I no longer have to list 3 or 4 different times for everyone.
1522522800
is this = March 31, 2018, 02:00:00 PM