[quote=@Caits]
<Snipped quote by LupusIntus>

That could be something good, but with timezones, I'm anywhere from 5 hours to 17 hours ahead of most people in this site
[/quote]

Setting a time where you, the GM, will post and timeskip everyone at the same time really doesn't have anything to do with timezones as with enough warning (48-62 hours notice is plenty) everyone should have wrapped/be-wrapping their stuff up anyway. 

With this many people it would likely be very risky waiting for every single person to finish their conversations on their own, in a reasonable amount of time. Best use the mystical all-seeing GM powers to synchronize our RP watches, as it were, and force all characters into the same relative in-RP time. :)