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

January 10 - February 5         | 3 weeks 5 days

3 March to 30 May               | 2 months 3 weeks 6 days

days since July 15              | 57 days
days till December 25           | 106 days
days between 3 March and 30 May | 88 days

1978 to 2021                    | 42 years

时间间隔是从第一个日期的中午到最后一个日期的中午计算的。

如果您想将起始和结束日期都包含在间隔内，请使用包含间隔函数（参见 下面）

两个日期之间的包含时间间隔

April 1 through April 30 in days | 30 days

周数（ISO 8601）

week of year                  | 36
week number on march 12, 2021 | 10

一个月或一个季度有多少天

days in Q3            | 92 days
days in February 2020 | 29 days

查找两个日期之间的中点

midpoint between March 12 and April 5   | 24 March
halfway between today and next Thursday | 13 September

关于日历计算歧义性的说明

模糊的月份

与天和周不同，月份在秒的定义上并不明确。Soulver 会根据表达式尝试执行最合乎逻辑的操作。它很擅长考虑到闰年和其他日历的特殊情况：

Feb 28 + 1 month          | 28 March
January 31 2020 + 1 month | February 29 2020

未指定年份的日期

没有指定年份的日期可能会使用当前年份或下一年。

# In December 2019

// 假设下一年，因为最近的一月在未来
January 12 + 3 weeks | 2 February 2020

// 假设今年，因为月份仍然在近期过去
November 1 - 5 days  | 27 October 2019