Returning from the EXE PE entry point merely terminates the main
thread and leaves the process hanging. We need to explicitly exit
from the process since the NTDLL RTL Start code won't do it for us.
SEGA games are unplayable between 03:00 and 07:00 local time due
to a network maintenance period that is hard-coded into the games
themselves (no, guest play is not available).
Deal with this by slowing down time to avoid 02:00 (the time when
a warning appears and new credits eventually start being rejected),
then jump forward to sync up with real time when 07:00 hits.
