在此請不要使用任何時(shí)區列表（除 UTC 外），僅用于向后兼容，可能會(huì )引起某些錯誤行為。此外，這些時(shí)區可能隨時(shí)會(huì )從 IANA 時(shí)區數據庫中移除。

If you disregard the above warning, please also note that the IANA timezone database that provides PHP's timezone support uses POSIX style signs, which results in the Etc/GMT+n and Etc/GMT-n time zones being reversed from common usage.

For example, the time zone 8 hours ahead of GMT that is used in China and Western Australia (among other places) is actually Etc/GMT-8 in this database, not Etc/GMT+8 as you would normally expect.

Once again, it is strongly recommended that you use the correct time zone for your location, such as Asia/Shanghai or Australia/Perth for the above examples.