日历计算
不再需要日历上数日子了!
从日期增加或减去时间
10 June + 3 weeks | 1 July
April 1, 2019 − 3 months 5 days | 27 December 2018
12/02/1988 + 32 years | 12 February 2020
01.05.2005 + 3 years 2 months 3 weeks | 22 July 2008
3 weeks after March 14, 2019 | 4 April 2019
28 days before March 12 | 12 February
2 months 3 days after June 5 | 8 August
yesterday - 8 weeks 3 days | 12 July
Yesterday + 1 week | 11 June获取相对于当前日期的日期
today + 3 weeks | 1 October
now − 1 month | 5 May
4 days from now | 14 September
3 days ago | 7 September查找两个日期之间的时间量
两个日期之间的包含时间间隔
周数(ISO 8601)
一个月或一个季度有多少天
查找两个日期之间的中点
关于日历计算歧义性的说明
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