Days Between Dates
This days between dates calculator counts the exact gap between any two dates. Pick a start and an end, and you'll get the total days, the span in weeks and months, and the business days with weekends taken out. Leave the start on today for a countdown to a future date, or drop in any two dates in either order. It's free, private, and updates as you type.
- Exact day count
- Weeks & months
- Business days
- Include end day
- Counts to the future
Last updated June 17, 2026 Weekends excluded from business days Reviewed by the Calcowa team
Order doesn't matter; the tool always gives a positive count. Business days skip Saturdays and Sundays.
end date − start date = 167 days
How many days between two dates?
Counting days by hand means tracking how many days each month holds and whether a leap year sneaks in. The shortcut is to turn each date into a single running day number, then subtract. That's how this days between dates calculator works, so the answer is exact no matter how far apart the dates sit. From January 1 to June 17, 2026 the gap is 167 days, which is 23 weeks and 6 days, or 5 months and 16 days on the calendar. You'll also see the business days, since deadlines often ignore weekends. It's the kind of thing that's quick to get wrong on paper, so the tool does it for you and you don't have to double-check.
How the gap is counted
Here's the path for January 1 to June 17, 2026. It's the same idea you'd use on a calendar, just without the page-flipping, and you won't lose track of a leap day:
- 1
Turn each date into a day numberBoth dates become a running count of days, which sidesteps month lengths and leap years.
- 2
Subtract themJune 17 minus January 1 leaves 167 calendar days between the two.
- 3
Split into weeks167 divided by 7 is 23 weeks with 6 days left over.
- 4
Drop the weekendsCounting only Monday through Friday gives 119 business days.
Common spans in days
Here are a few spans people look up often, with their rough business-day count. Yours will shift by a day or two depending on which weekday you start on, so they're a guide rather than an exact figure. When you need the precise number, the tool above has it.
| Span | Calendar days | Weeks | Business days (approx) |
|---|---|---|---|
| 2 weeks | 14 | 2 | 10 |
| 30 days | 30 | 4.3 | ~22 |
| 90 days | 90 | 12.9 | ~64 |
| 1 year | 365 | 52.1 | ~261 |
Frequently asked questions
Subtract the earlier date from the later one. The clean way is to convert both to a day count and take the difference, which is exactly what this tool does, so leap years and month lengths don't trip you up. From January 1 to June 17, 2026 there are 167 days. Type your two dates above and you'll get the number instantly, along with the weeks, months, and business days.
By default it doesn't, so January 1 to January 2 reads as 1 day, the gap between them. Flip the include end day toggle and it counts both endpoints, so the same pair reads as 2 days. Use the plain count for things like interest or notice periods, and the inclusive count when every calendar day matters, like a hotel stay or an event run.
Business days are the weekdays, Monday through Friday, with Saturday and Sunday left out. This tool counts them between your two dates, which is handy for shipping windows, contract terms, and payment deadlines that ignore weekends. It doesn't subtract public holidays, since those differ by country and state, so trim those off yourself if your deadline depends on them.
The tool divides the total days into whole weeks plus leftover days, and it also shows the span as years, months, and days using the calendar. So 167 days is 23 weeks and 6 days, or 5 months and 16 days. The two views answer different questions: weeks for scheduling, and the calendar breakdown for how the gap reads on a calendar.
Yes. Put today in the first box and your target in the second, and you'll see how many days until it arrives, like a countdown to a holiday, due date, or deadline. It works backward too, since you can drop in any two dates in either order and the tool sorts out which is earlier, so the day count is never negative.
Yes to both. There's no sign-up, no cap on how often you use it, and nothing to install, because it runs in your browser. The dates you type never leave your device, so nothing gets sent anywhere. Bookmark it and you've got a quick way to measure any date gap whenever you need one.
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