Last updated:
Find the number of days between two dates, or add and subtract years, months and days from a date.
Days between two dates
Pick two dates.
Add or subtract time
The number of days is the difference between the two calendar dates: from January 1 to January 2 is 1 day. Dates are handled without time zones. When you add months to a date like January 31, the result rolls over into the next month if that day does not exist.