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

155,042 days

From Tuesday, March 12, 1602 to Monday, September 7, 2026.

Monday–Friday weekdays110,744
Weeks and days22,148w 6d
Calendar span424 years, 5 months, 26 days

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