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Days From Today Calculator (Date Add/Subtract)
Add or subtract days, weeks, months or business days from any date.
Days Until Date Countdown
Count the days until any date or holiday, with weeks, business days and a live countdown.
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How to use this calculator
Enter your values. The result updates as you type; press Calculate to confirm and jump to the result on mobile. Use Share to send the calculator with your result.
How the countdown works
Days are counted from today to the target date, not including today. The live clock counts to midnight at the start of that date in your time zone. Pick a past date to see how many days have passed.
Popular countdowns
Use the quick picks for common holidays. US Thanksgiving is the fourth Thursday of November, so its date changes every year; the calculator works it out for you.
Frequently asked questions
How many days until Halloween?
364 days.
How many days until New Year?
61 days.
About this tool
- Written by
- [Author: to be assigned]
- Reviewed by
- Formula tests passed · human review pending
- Last updated
- 31 Oct 2026
See our methodology and editorial policy. Think something’s off? Report an error with this tool.
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