Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

144,081 days

From Monday, March 15, 1632 to Monday, September 7, 2026.

Monday–Friday weekdays102,915
Weeks and days20,583w 0d
Calendar span394 years, 5 months, 23 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.