Should TAI be DT::Format or DT::Calendar ?

[Joshua Hoblitt]

Hi Folks,

I'm having an itch to convert UTC<->TAI.  I started off writing this a 
DateTime::Format module because the conversion is so simple but since TAI isn't just a 
display formating of the Gregorian/UTC system (different epoch, no leapseconds, etc.) 
I'm now thinking this should be DateTime::Calendar module.

Does anyone have an opinion on this?

-J

--