Example
N days until Saturday, December 25, 2026
Days Until Calculator
Count the days, weeks, and time remaining until any target date instantly in your browser. Free online countdown and days-until calculator.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Start date — enter a date.
- Target date — enter a date.
- Review your results — the key output is highlighted, with supporting figures below.
Loading calculator…
Results
Countdown
| Detail | Value |
|---|---|
| Days | |
| Weeks | |
| Remaining days | |
| Target date |
What is this calculator for?
Find out how many days remain until (or have passed since) any target date.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Start date — enter a date.
- Target date — enter a date.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- Start date
- a date · optional
- Target date
- a date · required
About This Calculator
This calculator counts whole days between today (or a chosen start) and your target date, reporting the number of days, the weeks plus remainder, and the formatted date.
It works in both directions — if the target is in the past it reports "days since". All math runs locally.
Worked Examples
Frequently Asked Questions
Does it count the end date?
It counts full 24-hour days between the dates. A target of tomorrow from today reports 1 day, whereas the target itself is not counted.
What if I leave "start date" blank?
It uses today’s date automatically, so you get a live countdown without having to fill it in.