Date Difference Calculator
The difference between two dates, counted in days.
Leap-year accurate · Inclusive counting · On your device
Your dates stay in this browser tab
- 2dates in
- 1number out
- Leapdays counted
- Calendardays, not workdays
Date Difference Calculator at a glance
- What you enter
- A start date and an end date
- What you get
- The total number of days
- End day
- Counted only if you tick it
- Leap years
- Leap days counted
- What it does not do
- No workday or holiday filter
- Price
- Free
- Account required
- No
- Where it runs
- On your device
How to use Date Difference Calculator
- 1
Pick the start date
Pick the start date.
- 2
Pick the end date
Pick the end date.
- 3
Read the number
Read the day count.
Frequently asked questions
Does the count include the end date?
Not by default. It counts the full days from the start to the end. Tick the inclusive option and the end day is added, so Monday to Friday reads as five days.
Is February 29 counted?
Yes. Leap days are counted wherever the range crosses one, so a span over a leap year is one day longer than the same span in an ordinary year.
Can it count working days only?
No. The count is calendar days. There is no option to drop weekends or public holidays from the total.
Are the dates I pick sent anywhere?
No. The arithmetic runs in your browser tab. Nothing about the dates is uploaded or stored, and closing the page clears them.
Counting with or without the end day
Pick the two dates. The count is the number of full days from one to the other, with leap days included. Tick the option to count the end day as well.
- Left out by default, the count is the number of nights between the two dates.
- Ticked, the count is the number of days the period covers, which is what a schedule usually means.
- The two answers always differ by exactly one, so pick the one your case needs.
Full specification
| What you enter | A start date and an end date, from the calendar pickers. |
|---|---|
| What you get | One number: the days between them. |
| End day | Left out by default, and counted when you tick the inclusive option. |
| Leap years | February 29 is counted wherever the range crosses it. |
| What it does not do | Weekdays only, or skipping public holidays. The count is calendar days. |
| Price | Free |
| Account required | No |
| Where it runs | In your browser tab. Nothing is sent anywhere. |
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