Maybe we should use Epoch time? Not much room for interpretation there. If my calculations are right: - earlier today: 1486648303 - Plus 13 months: 1520603443 - Difference: 33955140
http://www.epochconverter.com/ Doug > -----Original Message----- > From: Public [mailto:[email protected]] On Behalf Of Peter Bowen > via Public > Sent: Monday, February 6, 2017 10:24 AM > To: CA/Browser Forum Public Discussion List <[email protected]> > Cc: Peter Bowen <[email protected]> > Subject: Re: [cabfpub] Durations > > > > On Feb 6, 2017, at 7:02 AM, Ryan Sleevi via Public <[email protected]> > wrote: > > > > However, because there's any interpretation involved at all, I'm happy > > to defer to days, with the clarification that any difference in the > > time period as well becomes considered a full day as well > > > > That is > > > > Jan 1 00:00:00 -> Jan 2 00:00:00 == 1 day Jan 1 00:00:00 -> Jan 2 > > 00:00:01 > 1 day > > > > (And luckily, the same doesn't have to be said about fractional > > microseconds) > > I was hoping to not raise the issue, but some minutes have more than 60 > seconds. Given that certificate notBefore/notAfter are specified to the > second, > this can cause the number of SI days to be slightly over. As long as > 00:00:00 to > 00:00:00 is always one day we are fine, but anyone implementing > number_of_seconds/86400 needs to ensure an extra 0.0000347 days does not > trip the rule unexpectedly. > > Thanks, > Peter > > > > _______________________________________________ > Public mailing list > [email protected] > https://cabforum.org/mailman/listinfo/public _______________________________________________ Public mailing list [email protected] https://cabforum.org/mailman/listinfo/public
