On 02/05/2018 07:04 PM, Steve Allen wrote:
I am going to argue that sub-second resolutions based on the once-assumed longitudes of sites are down in the "technical details" level that tzdb does not want to record except in comments.
Thanks for looking into the problem and for coming up with such a clear and convincing argument. Although I'm not sure that subsecond precision would be wrong everywhere, it does seem clear that it would be useful only in a very few cases in tzdata, and the exact set of cases would be hard to determine reliably. That's a good argument to not bother to add it, so let's revert that. However, I would still like zic to accept (and simply discard) subsecond data on input, as this is a straightforward extension to the data format, is not likely to collide with any future extension, and may be of some use someday (say, if North Korea decides to use a non-integer UTC offset as some sort of protest against the tyranny of Western timekeeping :-). Proposed patch attached.