Sept. 13, 2015
3:47 p.m.
On Mon, Sep 14, 2015 at 1:44 AM, Tim Peters <tim.peters@gmail.com> wrote:
That's a sane & easy sufficient condition. It's a waste of time to worry about minimal necessary conditions. "Convert to UTC' is the obvious way to do darned near everything. Converting to any other fixed-offset zone would do just as well, but _that_ observation is also a waste of time, since "convert to UTC" is just as easy ;-)
So it isn't sufficient for them all to be in, say, Australia/Melbourne, which observes DST. Fair enough. And yeah, converting to UTC is straightforward enough. ChrisA