Portable general timestamp format, not 2038-limited

[Paul Rubin]

James Harris <james.harris.1 at googlemail.com> writes:
> I have a requirement to store timestamps in a database. Simple enough
> you might think but finding a suitably general format is not easy. The
> specifics are
> 
> 1) subsecond resolution - milliseconds or, preferably, more detailed
> ...

There are subtle issues that have been messed up many times.  See:

  http://cr.yp.to/time.html

particularly the TAI stuff for some info.