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

146,249 days

From Wednesday, April 8, 1626 to Monday, September 7, 2026.

Monday–Friday weekdays104,463
Weeks and days20,892w 5d
Calendar span400 years, 4 months, 30 days

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