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

155,460 days

From Thursday, January 18, 1601 to Monday, September 7, 2026.

Monday–Friday weekdays111,042
Weeks and days22,208w 4d
Calendar span425 years, 7 months, 20 days

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