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

138,012 days

From Monday, October 26, 1648 to Monday, September 7, 2026.

Monday–Friday weekdays98,580
Weeks and days19,716w 0d
Calendar span377 years, 10 months, 12 days

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