- 夏令时_百度百科
夏令时，（Daylight Saving Time：DST），也叫夏时制，又称“日光节约时制”和“夏令时间”，是一种为节约能源而人为规定地方时间的制度，在这一制度实行期间所采用的统一时间称为“夏令时间”。
- Daylight saving time - Wikipedia
In many countries, the part of the year when DST is observed is much longer than the part aligned to standard time The practice of DST was first tested and widely adopted in the early 20th century, since which many countries have abandoned DST partially or entirely
- Daylight Saving Time 2026 in the United States
When Does DST Start and End in the US? Daylight Saving Time (DST) in most of the United States starts on the second Sunday in March and ends on the first Sunday in November
- 夏令时查询 - 全球城市 DST 状态 · ClockZone
查看全球主要城市的夏令时（DST）状态，了解下一次时间切换的日期和偏移变化。
- Daylight Saving Time Rules | NIST
We advance our clocks ahead one hour at the beginning of DST, and move them back one hour ("spring forward, fall back") when we return to standard time (ST) The transition from ST to DST has the effect of moving one hour of daylight from the morning to the evening
- DST around the world - Time. is
时间调整数据来自 IANA 时区数据库 （版本 2025b，无修订）。 时间调整计划有可能被取消或更改，也可能会有新的时间调整计划出现，而且这种变化可能十分突然。 此页面最近更新于2025年3月25日星期二。
- Daylight Saving Time (DST) Explained: Rules, Dates Countries (2026)
Complete guide to Daylight Saving Time (DST) Learn when clocks change, which countries observe DST, why it exists, and how it affects time zones around the world
- What Is Daylight Saving Time? How DST Works Who Uses It
DST runs from the first Sunday in October to the first Sunday in April in participating states (ACT, NSW, South Australia, Tasmania, Victoria) Queensland, Northern Territory, and Western Australia do not observe DST
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