Tool
How many days between two dates?
Pick a start and end date to count the days, weeks and working days between them.
So far this year
213 days
151 days left until 31 December 2026
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Counting the days between two dates
The difference between two calendar dates is simply the number of whole days from one to the other. It sounds trivial, but month lengths and leap years make mental arithmetic error-prone — the gap from 15 January to 15 March is 59 days, not 60, because February is short. This tool does the counting for you and also expresses the span in weeks and in working days (Monday to Friday), which is what you usually want for deadlines and notice periods. If you only care about the working days, use the dedicated business days calculator; to jump forward or back by a fixed number of days, use add days to a date.
Frequently asked questions
- How many days are between two dates?
- Enter a start and end date above and this tool counts the whole calendar days between them. Today, 2026-08-02, is day 214 of 2026, with 151 days left until 31 December.
- Does the count include the start and end date?
- This tool returns the number of days from the start date to the end date — the difference between them. A span from Monday to the following Monday is 7 days. If you need to count both endpoints as whole days (an "inclusive" count), add one.
- Are leap years and month lengths handled?
- Yes. The calculation uses the real calendar, so February 29 in leap years and the different month lengths are all counted correctly. It works entirely in UTC calendar days, so daylight saving changes never add or drop a day.
- Can I count days into the past?
- Yes. If the end date is earlier than the start date the result is shown as a negative number, which tells you how many days ago the second date was.