Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
148,915 days
From Thursday, December 20, 1618 to Monday, September 7, 2026.
Monday–Friday weekdays106,367
Weeks and days21,273w 4d
Calendar span407 years, 8 months, 18 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.