如何将所有时区(如America / Los_Angeles或Europe / Moscow)转换为TZ var的下一格式:
stdoffset[dst[offset],date[/time],date[/time]]
像这样:
America/Los_Angeles --> PST8PDT,M4.1.0/02:00,M10.5.0/02:00
Amsterdam/Netherlands --> CET-1CEST-2,M3.5.0/02:00:00,M10.5.0/03:00:00
Europe/Moscow --> ???
Europe/Istanbul --> ???
...
and so on for all timezones.