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

140,425 days

From Wednesday, March 19, 1642 to Monday, September 7, 2026.

Monday–Friday weekdays100,303
Weeks and days20,060w 5d
Calendar span384 years, 5 months, 19 days

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