作者cchris (ILLSH)
看板ck47th320
标题Re: 美国与台湾时差
时间Thu Aug 30 05:03:16 2001
※ 引述《jianhao (心魔)》之铭言：
: ※ 引述《genie2 (突然很想打中文)》之铭言：
: : 这个不太懂
: : 为什麽是台湾动夏令时间
: : 又夏令是指几月到几月？
: 大概是他们每天落後一个小时
: 所以算起来台湾这边加一个小时会得到相同结果
: 是不是这样？
(sorry that I can't type Chinese at work)
No, he didn't explain clear enough.
US and Europe has summer daylight saving time. (slightly different schedule)
Taiwan has it several decades ago, but not very useful, so it is cancelled.
In US, between 1st weekend in April and 4th weekend in October is summer time.
The clock is tuned one hours faster.
Therefore, Pacific time: from -8 to -7
Eastern time: from -5 to -4
And Taiwan is always +8
So in summer Pacific will have 15 hours difference to Taipei
in winter, it will be 16 hours.
And, getting more complicated, Arizona and some part of Indiana don't observe
the summer daylight time, so there time is always the same.
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