MSVC doesn't allow chaining of const expressions grumble grumble
(need to use constexpr, which is a. an extremely ugly looking
reserved word and b. exclusive to C++)
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.