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

140,915 days

From Wednesday, November 14, 1640 to Monday, September 7, 2026.

Monday–Friday weekdays100,653
Weeks and days20,130w 5d
Calendar span385 years, 9 months, 24 days

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