If somebody only can play at nighttime, he never sees daylight ingame and thats big bullshit.
Even for regional servers you will have differences of ~6-8 hours and we don't know if we got events that are based on ingame time or mobs that only spawn at night.

Sry but there are way too many problems for a 24h ingame day. We gonna need day/night cycles of 1-3 hours