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

153,547 days

From Saturday, April 15, 1606 to Monday, September 7, 2026.

Monday–Friday weekdays109,676
Weeks and days21,935w 2d
Calendar span420 years, 4 months, 23 days

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