Geek Answers Handbook

Why are there so many timing options that allow EST?

I need to add the ability to change time zones for North America only. A total of six time zones, including Hawaii and Alaska.

I am in the eastern United States, so my time zone is eastern. Choosing the time zone for my location, I can choose New York, Chicago and several others. I'm not sure why there are so many different time zones that allow the same offset; if due to DST.

All I'm basically looking for is these six zones:

  • Est
  • Cst
  • MST
  • Pst
  • AKST
  • Hst

Can someone tell me why there are so many different time zones to choose from this solution for the same offset?

+4
1

PHP PECL. PECL "Olson", IANA.

- IANA :

( tz zoneinfo) , . , , , UTC, . BCP 175: .

, (, , , -, ).

, , , , . , , - , , PST, .

, PST , /, , , .

+7

More articles:


All Articles