Calendar Calculations
No more counting days on a calendar!
Adding or subtracting time from dates
10 June + 3 weeks | 1 July
April 1, 2019 − 3 months 5 days | 25 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 JuneGetting a date relative to the present
today + 3 weeks | 1 October
now − 1 month | 5 May
4 days from now | 14 September
3 days ago | 7 SeptemberFind the amount of time between two dates
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
Monday - Friday | 4 daysInclusive intervals of time between two dates
Monday through Friday | 5 days
April 1 through April 30 in days | 30 daysWeek numbers (ISO 8601)
week of year | 36
week number on march 12, 2021 | 10How many days in a month or quarter
days in Q3 | 92 days
days in February 2020 | 29 daysFind the midpoint between two dates
midpoint between March 12 and April 5 | 24 March
halfway between today and next Thursday | 13 SeptemberNotes on Ambiguity in Calendar Calculations
Ambiguous months
Unlike days and weeks, months are not clearly defined in terms of seconds. Soulver attempts to do the most logical thing given the expression. It's smart at taking into account leap years, and other calendar peculiarities:
Feb 28 + 1 month | 28 March
January 31 2020 + 1 month | February 29 2020Dates with unspecified years
A date without the year specified may use either the current year or the following year.
# In December 2019
// next year is assumed, as the nearest January is in the future
January 12 + 3 weeks | 2 February 2020
// this year is assumed, as the month is still recently in the past
November 1 - 5 days | 27 October 2019Last updated
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