Re: tz package

I suggest that you put a BIG warning around the use of 'leapseconds' in time calculations. For a number of reasons, POSIX (IEEE standard Unix, soon to be ANSI and ISO standard unix) prohibits the standard conversion to/from "Seconds since the Epoch" functions from taking leapseconds into account.

I think we came to the conclusion before doing the leapsecond stuff that the wording in POSIX *requires* that standard conversion routines take leapseconds into account. Brad