Officially, no.
That said, there are a few crossover events that can be used to link the timeline. Ravenloft and Planescape have fan-timelines that link to other settings. Using them (and cross referencing other events) gets the following. (Note, these years all manage to link up; this is not the CURRENT year in any of these products).
Planescape 2 years post Faction War (2 years post Factol Hashkar's Reign)
Birthright 2041 MA, 1527 HC, or 554 MR
Dark Sun Free Year 15, or Mountain’s Defiance of the 190th Kings Age
Forgotten Realms 1371 Dale Reckoning, Year of the Unstrung Harp, or 13 Present Reckoning.
Ravenloft 754 Barovian Calendar
Dragonlance 388 AC, 5 SC
Greyhawk 591 CY
Mystara 1010 AC
Of course, the calendars of these worlds don't all contain the same amount of days, so its moot anyway; they'll eventually fall out of sync. Buts its a good start.
(Source: lots of google searches)