[LEAPSECS] Lets get REAL about time.

Clive D.W. Feather clive at davros.org
Tue Jan 24 09:22:38 EST 2012

Keith Winstein said:

> Hmm, in practice I think the plan to simply fail with an error is

> going to be a non-starter. Plenty of applications need to record dates

> more than six months in the future; e.g. in a calendar program, the

> user will want to schedule a meeting for August 1, 2012, from 9 a.m.

> EDT to 10 a.m. EDT.

Actually, let's suppose it was March, not August. The user probably wants
to schedule a meeting for 26th March 2013, 09:00 ET to 10:00 ET.

Now the user doesn't care at this point whether ET is EST or EDT. If the
changeover date changes between now and then, they want the appointment to
remain ET.

> The program will want to do all the normal things

> -- calculate the duration of the meeting, how far in the future it is

> (so it can put it in sorted order along with the other events of that

> day), etc.

Right. And they want all the ET events sorted by ET, irrespective of
whether "daylight saving time" is in effect or not.

Clive D.W. Feather | If you lie to the compiler,
Email: clive at davros.org | it will get its revenge.
Web: http://www.davros.org | - Henry Spencer
Mobile: +44 7973 377646

More information about the LEAPSECS mailing list