Date Difference
Count the days between two dates — or find the date a set number of days after or before another.
Counting calendar days. A calendar day is the same in every country, so no jurisdiction applies.
| Days | After today | Before today |
|---|---|---|
| 7 | Mon, Oct 26, 2026 | Mon, Oct 12, 2026 |
| 14 | Mon, Nov 2, 2026 | Mon, Oct 5, 2026 |
| 21 | Mon, Nov 9, 2026 | Mon, Sep 28, 2026 |
| 30 | Wed, Nov 18, 2026 | Sat, Sep 19, 2026 |
| 60 | Fri, Dec 18, 2026 | Thu, Aug 20, 2026 |
| 90 | Sun, Jan 17, 2027 | Tue, Jul 21, 2026 |
| 100 | Wed, Jan 27, 2027 | Sat, Jul 11, 2026 |
| 180 | Sat, Apr 17, 2027 | Wed, Apr 22, 2026 |
| 365 | Tue, Oct 19, 2027 | Sun, Oct 19, 2025 |
| Holiday | Date | Days away |
|---|---|---|
| Veterans Day | Wed, Nov 11, 2026 | 23 days |
| Thanksgiving Day | Thu, Nov 26, 2026 | 38 days |
| Christmas Day | Fri, Dec 25, 2026 | 67 days |
| New Year's Day | Fri, Jan 1, 2027 | 74 days |
| Martin Luther King Jr. Day | Mon, Jan 18, 2027 | 91 days |
How the count works
- Count the days measures the gap between the two dates, so the start date itself is not counted: one day apart is 1, and the same date twice is 0.
- Find a date works the other way, adding or subtracting that many calendar days from the start, which is also not counted. The two agree, so the date ten days after a start is ten days from it.
- Every calendar day counts the same. Nothing is skipped for weekends or public holidays, which is what Business Days is for.
Worked examples
- From 1 March to 15 March is 14 days. To count a stay that includes both the first and last day, add one: 15.
- Ten days after 1 March lands on 11 March; ten days before it lands on 19 February except where a leap day shifts it to 20 February.
Common questions
- Which countries does this work for?
Every country. Counting calendar days is the same everywhere, so unlike a business-day count it needs no country data and is never withheld.
- Do daylight saving or leap years change the count?
No. Days are counted by the calendar, not the clock, so a daylight-saving change inside the range never adds or drops a day. A leap day counts as an ordinary day, so a span crossing 29 February is one day longer than the same span in a common year.