问题
I'm not from the US but I want to use date_default_timezone_set and set it to Englewood, Colorado. What do I use? I can't find any America/Englewood or America/Colorado in the documentation. Any help?
回答1:
As google tells me that Colorado is in the 'Mountain Time Zone' use US/Mountain from the documentation
回答2:
The correct TZDB zone name is America/Denver.
US/Mountain is an alias that presently resolves to America/Denver, but it may not always be that way in the future.
The US/* aliases are there for backwards compatibility only, and do not follow the normal naming conventions of the IANA/Olson time zones that PHP uses.
From the PHP documentation:
Warning
Please do not use any of the timezones listed here (besides UTC), they only exist for backward compatible reasons.
See also: Are 'US/Eastern' and 'US/Central' and 'US/Pacific' deprecated for strftime or just PHP?
来源：https://stackoverflow.com/questions/16446037/what-do-i-put-in-date-default-timezone-set