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

223,052 days

From Saturday, December 30, 1415 to Wednesday, September 9, 2026.

Monday–Friday weekdays159,323
Weeks and days31,864w 4d
Calendar span610 years, 8 months, 10 days

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