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

162,484 days

From Monday, October 26, 1581 to Monday, September 7, 2026.

Monday–Friday weekdays116,060
Weeks and days23,212w 0d
Calendar span444 years, 10 months, 12 days

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