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

195,788 days

From Thursday, August 21, 1490 to Tuesday, September 8, 2026.

Monday–Friday weekdays139,848
Weeks and days27,969w 5d
Calendar span536 years, 18 days

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