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

155,671 days

From Wednesday, June 21, 1600 to Monday, September 7, 2026.

Monday–Friday weekdays111,193
Weeks and days22,238w 5d
Calendar span426 years, 2 months, 17 days

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