On Dec 26, 2006, at 23:02, M. Warner Losh wrote:

Of course, needing to know TAI-UTC offsets leads one to interesting
situations.  What does one do if one has TAI time, but not UTC and a
conversion is asked for?

If it's a time in the future rather than just the current time, the
thread may have to block for years...

Probably you'd want a "quick" function that returns a special "don't
know" value, or throws exception, or returns a special result code
(as COM). Then the caller can decide what to do.

Ashley Yakeley

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