Date Difference Calculator
Show the difference in days, weeks, or months, including whether the end day counts.
Your result
Choose the start date and the end date.
How to use it
- Choose the start date (today by default).
- Choose the end date, or use a shortcut such as +90 days.
- Read the difference and the breakdown.
Examples
- 13 Nov 2026 to 1 Mar 2027Days in between 108 days = 3 months and 16 days
- 1 to 10 JanuaryCount both dates too 10 days
- An earlier end date29 Feb 2024 Swapped, 988 days
Tool details and privacy
Find the gap between two dates in days, in years, months and days, and in weeks and hours.
Pick both dates from the calendar. If the end is before the start, they are swapped and you are told.
Options
- Days in between, or count both dates too.
- Shortcuts: +30 and +90 days, +6 months and +1 year from the start.
Limits
- Dates from 1900 to 2100.
- Months are whole calendar months; a missing day uses the month's last day.
Privacy
Everything is worked out in your browser. Nothing is sent to a server or saved.
Questions
Is the start day counted?
Not by default. Choose Count both dates too.
What if I swap the dates?
They are put back in order for you.
Do I see years?
Yes, as years, months and days.