The two most people encounter are leap year and daylight savings time.
Even worse, many callers don't know their offset from GMT, so you're faced with supporting time zones, time zone abbreviations, daylight savings time... the list can get long and unwieldy.
Historically, the prospect of energy savings drove widespread embrace of daylight savings.
A 2003 study by researchers at Stanford and Johns Hopkins universities analyzed a 21-year period and found a significant spike in traffic accidents on the Sunday that ended daylight savings time.
The best time to look for these fast-streaking Orionid meteors is between midnight (1 a. m. daylight savings time) and dawn for the next few mornings.
Because of daylight savings time , Lauschmann has a part of the United States jumping an hour early.
The researchers chalked this up not just to darker roadways, but also to drivers having a difficult time adjusting to the end of daylight savings.
You must address daylight savings time by business rules.
Phoenix has no daylight savings time.
