We have various patches on RB to treat this.

The original issue (Michelangelo's quest) was solved (not sure when) using
game_time() function

To get ingame date-tracking Xenux did /r/1534 and /r/1540 but in the end /r/2001
was commited -- we can use game_date() function

The only RB thread still open which must be done in order to close this bug
request, at least in my opinion, is /r/1961 which add a runtime for timed
events. It's pending a better implementation (dynarray?) as of August 8th, 2016.