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

204,925 days

From Wednesday, August 16, 1465 to Wednesday, September 9, 2026.

Monday–Friday weekdays146,375
Weeks and days29,275w 0d
Calendar span561 years, 24 days

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