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

155,807 days

From Sunday, February 6, 1600 to Monday, September 7, 2026.

Monday–Friday weekdays111,291
Weeks and days22,258w 1d
Calendar span426 years, 7 months, 1 day

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