Daylight saving time records of major countries
主要国家夏令时记录
(Summer Time is also called DST: Daylight Saving Time)
(夏令时 Summer Time 也称 DST:Daylight Saving Time)
---According to the website
---根据网站
https://www.timeanddate.com/time/change/usa/new-york
===Tokyo does not implement daylight saving time===
===Daylight saving time in New York (calculated based on local time)===
1976-1986: the last Sunday in April at 02:00 --> the last Sunday in October at 02:00
1987-2006: 02:00 on the first Sunday in April --> 02:00 on the last Sunday in October
2007-present: 02:00 on the second Sunday in March --> 02:00 on the first Sunday in November
===London Daylight Saving Time (based on local time)===
1972-1980: the third Sunday in March at 02:00 --> the last Sunday in October at 03:00
1981-present: the last Sunday of March 01:00 --> the last Sunday of October 02:00
===Sydney Daylight Saving Time (based on local time)===
---(Southern Hemisphere, the season is opposite to that of Northern Hemisphere) (the big month is the beginning, the small month is the end)---
1972-1985: --> the first Sunday in March at 03:00 and the last Sunday in October at 02:00 -->
(Except 1982): --> the first Sunday in April at 03:00 and ... -->
(Except 1972): --> the last Sunday of February at 03:00 and ... -->
1986-1989: --> the third Sunday in March at 03:00 and the last Sunday in October at 02:00 -->
(Except 1986): --> ... and the third Sunday in October at 02:00 -->
1990-1995: --> the first Sunday in March at 03:00 and the last Sunday in October at 02:00 -->
1996-2007: --> the last Sunday in March at 03:00 and the last Sunday in October at 02:00 -->
(Except 2006): --> the first Sunday in April at 03:00 and ... -->
(Except 2000): --> ... and the last Sunday of August at 02:00 -->
2008-present: --> the first Sunday in April at 03:00 and the first Sunday in October at 02:00 -->
===Frankfurt summer time (based on local time)===
1980-1995: Last Sunday in March at 02:00 --> Last Sunday in September at 03:00
(Except 1980): the first Sunday in April at 02:00 --> ...
1996-present: the last Sunday of March at 02:00 --> the last Sunday of October at 03:00
===Wellington Daylight Saving Time (based on local time)===
---(Southern Hemisphere, the season is opposite to that of Northern Hemisphere) (the big month is the beginning, the small month is the end)---
1976-1989: --> the first Sunday in March at 03:00 and the last Sunday in October at 02:00 -->
(Except 1989): --> ... and the second Sunday of October at 02:00 -->
1990-2007: --> the third Sunday in March at 03:00 and the first Sunday in October at 02:00 -->
(Except 2007): --> ... and the last Sunday of September at 02:00 -->
2008-present: --> the first Sunday in April at 03:00 and the last Sunday in September at 02:00 -->
===How to adjust===
(Northern Hemisphere) Take the local time in New York and London as examples:
Daylight saving time starts:
On Sunday, March 14, 2021, at 2:00:00, the clock will be adjusted forward 1 hour to 3:00:00 local time.
End of daylight saving time:
On Sunday, November 7, 2021, at 2:00:00:00, the clock will go backwards 1 hour to 1:00:00 local time.
(Southern Hemisphere) Take local time in Sydney as an example (the big month is the beginning and the small month is the end):
Last year's daylight saving time ended:
On Sunday, April 4, 2021, the clock will move back 1 hour at 3:00:00 to 2:00:00 local time.
Daylight saving time starts:
On Sunday, October 3, 2021, the clock will be adjusted forward 1 hour at 2:00:00 to 3:00:00 local time.
(除了1972年):--> 2月的最后一个星期日03:00 and ... -->
(除了1986年):--> ... and 10月的第三个星期日02:00 -->
1990年-1995年:--> 3月的第一个星期日03:00 and 10月的最后一个星期日02:00 -->
(除了2000年):--> ... and 8月的最后一个星期日02:00 -->
2008年-至今: --> 4月的第一个星期日03:00 and 10月的第一个星期日02:00 -->
===法兰克福Frankfurt夏令时(以当地时间算)===
1980年-1995年:3月的最后一个星期日02:00 --> 9月的最后一个星期日03:00
(除了1980年):4月的第一个星期日02:00 --> ...
1996年-至今: 3月的最后一个星期日02:00 --> 10月的最后一个星期日03:00
===惠灵顿Wellington夏令时(以当地时间算)===
---(南半球,季节与北半球相反)(大月份为开始,小月份为结束)---
1976年-1989年:--> 3月的第一个星期日03:00 and 10月的最后一个星期日02:00 -->
(除了1989年):--> ... and 10月的第二个星期日02:00 -->
1990年-2007年:--> 3月的第三个星期日03:00 and 10月的第一个星期日02:00 -->
(除了2007年):--> ... and 9月的最后一个星期日02:00 -->
2008年-至今: --> 4月的第一个星期日03:00 and 9月的最后一个星期日02:00 -->
===怎么调整===
2021年10月3日星期日时,2时00分00秒时钟向前调1小时 至 当地时间3时00分00秒。