Calendar Day Count 2025. Use the arrow keys to change the year and month. Find out how many days there are between any two dates, e.g.
Sum the result to the number of days in. There are 7 months with 31 days, 4 months with 30 days, and 1 month with 28 days in 2025, or 52 weeks and 1 day in 2025 when counting by weeks.