Well the issue is you are on EST and the server may be in PST.
Then you have daylight savings which is not adopted everywhere even in the usa.
Then it depends on where your members are located at.
UK,Japan,NY,Texas???
Then one day you move the server to another timezone.
So you do have in the UBB to correct the time globally.
CP>General-Date & Time
Default Time Offset (Hours):
But then what do you pick,your time offset or???
Then there is no consideration for daylight savings again.
So 6 months out of the year some user would be off by a hour.
BTW,
I never have used a space on the time offset. So I would assume a space may not work well.
