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

148,502 days

From Thursday, February 6, 1620 to Monday, September 7, 2026.

Monday–Friday weekdays106,072
Weeks and days21,214w 4d
Calendar span406 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.