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

200,793 days

From Friday, December 8, 1476 to Wednesday, September 9, 2026.

Monday–Friday weekdays143,423
Weeks and days28,684w 5d
Calendar span549 years, 9 months, 1 day

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