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📅 Days Between Two Dates
Select start and end dates to find the exact difference
⚡ Days Until Upcoming Events
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How to Calculate Days Between Two Dates
Calculating the number of days between two dates is useful for tracking project deadlines, calculating loan terms, planning events and counting down to important occasions. Our free date difference calculator handles all of this instantly with a detailed breakdown.
When Do You Need a Date Calculator?
- Counting days until a birthday, vacation or event
- Calculating project duration and deadlines
- Finding working days for payroll and contracts
- Measuring how long ago something happened
- Legal and contract date calculations
- Calculating loan terms and payment schedules
Calendar Days vs Working Days
Calendar days count every day including weekends and holidays. Working days count only Monday through Friday excluding weekends. Use our Working Days tab to calculate business days — useful for contract deadlines and payment terms.
Frequently Asked Questions
How many days are between two dates? +
Select your start and end dates above and click Calculate. The exact number of days appears instantly with a full breakdown in weeks, months and years. You can also choose to include or exclude the end date from the count.
How do I calculate working days between two dates? +
Click the Working Days tab above, select your start and end dates and click Calculate. The tool automatically excludes Saturdays and Sundays and shows you the exact number of business days between your chosen dates.
How many days are in each month? +
January 31, February 28 or 29 in leap years, March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, December 31. A simple trick — knuckle months have 31 days, valley months have 30 days except February.
How do I add days to a date? +
Click the Add Days to Date tab above. Enter your start date, enter the number of days to add or subtract, select the operation and click Calculate. The result shows the exact date that falls that many days from your start date.
How many weeks are in a year? +
A standard year has 52 weeks and 1 day — that is 365 days divided by 7. A leap year has 52 weeks and 2 days — 366 days total. This is why your birthday falls on a different day of the week each year.