Days Until Calculator
Count the days left until any date — with weeks and the weekday it lands on.
100% freeNo sign-up No data leaves your browserPrivacy
Pick any date to see exactly how many days are left until then — along with the number of weeks, the working days remaining, and the day of the week it falls on. The countdown updates the moment you choose a date.
It counts from today using your device's local date, so there's no timezone drift, and everything is worked out in your browser — nothing you enter is sent anywhere.
Formula
Days until a date
target date − today = days remaining
The whole days from today up to the target date. Example: today → seven days later = 7 days.
Weeks remaining
days remaining ÷ 7 = weeks
The day count expressed in weeks. Example: 21 days is 3 weeks.
Examples
| Example | Input | Result |
|---|---|---|
| Next week | today → +7 days | 7 days |
| To a holiday | today → Christmas | days + weekday shown |
| Past date | a date last month | “N days ago” |
How to use the days until calculator
- 1Pick the date you're counting down to — or tap a quick date like Christmas.
- 2Read the days remaining, plus weeks, working days, and the weekday it lands on.
- 3Copy the result, or share the page URL with your date pre-filled.
How the countdown is calculated
The calculator takes today's date and counts the whole days up to the date you choose. It uses calendar-correct, leap-year-aware date math, so a countdown that crosses February 29 is counted exactly. Because it works from your device's local date, the result doesn't shift by a day across timezones.
If you pick a date that has already passed, the tool tells you how many days ago it was instead — handy for working out how long it's been since an event.
Working days until a date
Alongside the total days, the calculator shows the working days remaining — the Monday-to-Friday days between today and the target. This is useful for deadlines and turnaround times. It doesn't account for public holidays, which vary by country, so subtract any that fall in the span if you need an exact business-day figure.
Common uses
Count down to a holiday, a birthday, a wedding, an exam, a product launch, or a project deadline. For the span between two specific dates rather than from today, use the [Date Difference Calculator](/tools/date-difference-calculator); to add or subtract a number of days from a date, use the [Date Calculator](/tools/date-calculator).
Frequently asked questions
How many days until a date?
Pick the date above and the calculator counts the whole days from today to that date, along with the number of weeks and the weekday it falls on.
Does it count working days?
Yes. It shows the Monday-to-Friday working days remaining as well as the total days. It doesn't subtract public holidays, which differ by country.
What if the date has already passed?
The calculator detects a past date and tells you how many days ago it was, instead of a countdown.
What's the difference between this and the Date Difference Calculator?
This tool counts from today to a single date — a countdown. The Date Difference Calculator measures the span between two dates you choose. Use whichever matches your question.
Is my data private?
Yes. The countdown is calculated entirely in your browser; the date you pick is never uploaded or stored on a server.
Embed this calculator
Add the Days Until Calculator to your own website — free. Copy and paste this snippet:
<iframe src="https://numvella.com/embed/days-until-calculator" width="100%" height="460" style="border:1px solid #e2e8f0;border-radius:12px" title="Days Until Calculator — Numvella" loading="lazy"></iframe>Related calculators
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