日期时间
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节假日日期计算器.
查找任意年份任意节日的确切日期，并查看距离该节日还有多少天——美国、英国和印度。
输入数值
输入时结果会更新。
使用方法
日期是根据官方规则计算得出的，而非查表得来：包括圣诞节等固定日期、11月第四个星期四等按星期计算的规则，以及以复活节为基准的节日。
复活节采用匿名格里高利历算法（Anonymous Gregorian computus）计算，因此1583年以来任何一年的耶稣受难日、复活节星期一、耶稣升天节和圣灵降临节都是精确的。
这些是实际的节日日期。当节日恰逢周末时，部分国家会将其调至附近的工作日庆祝；此处未显示该顺延日期。
由农历确定的节日——如开斋节、排灯节、洒红节、中国农历新年——未列于此处，因为它们无法通过格里高利历规则推算得出。
常见问题
How is the date of Easter calculated?
Easter Sunday is computed with the Anonymous Gregorian computus (the Meeus/Jones/Butcher algorithm), the standard method for the Western church. Easter is the first Sunday after the first ecclesiastical full moon on or after 21 March, so it always falls between 22 March and 25 April. Good Friday is two days earlier, Easter Monday one day later, Ascension 39 days later and Whit Sunday 49 days later.
When is Thanksgiving this year?
US Thanksgiving is always the fourth Thursday of November, so it moves between 22 and 28 November. Select Thanksgiving and any year to get the exact date — for example it falls on 26 November in 2026. Black Friday is the day immediately after, which is not always the fourth Friday of November.
Why does Memorial Day change date every year?
Memorial Day is defined as the last Monday of May, not a fixed date, so it lands anywhere from 25 to 31 May. That 'last' rule matters: some Mays contain five Mondays and some only four, so the last Monday is not always the fourth one. This calculator applies the last-occurrence rule correctly.
Which countries are supported?
The United States, the United Kingdom and India in this version. Each country has its own list, including US federal holidays and popular observances, UK bank holidays such as the Early May, Spring and Summer bank holidays, and India's gazetted Gregorian holidays like Republic Day, Independence Day and Gandhi Jayanti.
Are observed dates shown when a holiday falls on a weekend?
No — the calculator gives the actual holiday date. Several countries shift the day off to the nearest weekday when a holiday lands on a Saturday or Sunday, and those observed dates vary by employer and jurisdiction, so they are deliberately not shown here.
Why aren't Diwali, Eid or Chinese New Year listed?
Those holidays follow lunar or luni-solar calendars, so their Gregorian date cannot be derived from a rule the way Christmas or Thanksgiving can. Including them would mean shipping a hand-maintained lookup table that quietly goes stale, so they are omitted rather than approximated.