as game goes  past midnight the date remains the same, I'd expect it to go to the next date as midnight passes.

atttached scenario for westpac battleset, hddb database.

testdate.zip

HCE - 2021.013 - 2021-12-##
===========================
- Chg:31941 GE  The Day, Month, Year display of GameTime was not incrementing
                 the month at the end of a month so it looked like Groundhog 
                 Day at the end of every month.  Fixed.  Also fixed a month bug.
                 (thanks donaldseadog)
  https://harpgamer.com/harpforum/topic/31941-game-time-date-doesnt-progress-at-midnight/

I made matching changes to the shared pascal code in uHCDateTime.pas as well.  Side note, I wrote the original code while on honeymoon in 2015.  What a wife :).