I guess that I am a geek when it comes to Stardates in Star Trek.  Stardates were were pretty fluid in the TOS era.  Basically, a decimal point indicated the time of the hours.  One full change in the stardate (say from 2345 to 2346) was a 12 hour period.  When the TOS series ended, the stardate was at 5925.8, which meant approximately at December 17, 2269.  Since we are 25 years in the future, we can start off with Stardate 30125.1 (just a general area for February 17, 2294) if that would work for everyone.