Days Until a Date Calculator
Count down to any date. Enter a target date and see how many days are left until then (or how many have passed), along with the number of full weeks.
Examples
A countdown to a month from today.
Invalid date
Invalid date. Use YYYY-MM-DD (e.g. 2026-12-25).
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Examples
How It Works
Formula
Variables
- The date you are counting down to
Enter a target date. The calculator counts the whole days between today and that date: positive for future dates, negative for dates that have passed.
Frequently Asked Questions
01Does it count from today?
Yes. It counts whole days from your device’s local date to the target date.
02What if the date is in the past?
The countdown shows how many days have already passed since that date.
03How are weeks calculated?
It divides the day count by seven and rounds toward zero.