What is a days until calculator?
A days until calculator counts how many calendar days are left before a selected date.
Date & Time
Days Until Calculator
Count how many days are left until a future date directly in your browser. Calculate days until birthdays, holidays, deadlines, events, and important dates.
Tool
Days Until Calculator
Count how many days are left until a future date directly in your browser. Calculate days until birthdays, holidays, deadlines, events, and important dates.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free days until calculator to find out how many days are left until an important date. Enter a target date and instantly see the countdown in days, weeks, and remaining time.
Conversion Formula
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Days until a date are calculated by comparing today’s date with the selected target date. The result is the number of calendar days remaining, with optional inclusive or exclusive counting.
Examples
- Count how many days until your next birthday
- Calculate days until Christmas, vacation, a wedding, or a deadline
- Find out how many weeks and days remain before an event
Frequently Asked Questions
Can I use it as a birthday countdown?
Yes. Enter the next birthday date to see how many days are left until that birthday.
Does it count today?
The tool can support inclusive or exclusive counting, depending on whether you want to count today as part of the remaining time.
Can I calculate past dates?
Yes. If the selected date is in the past, the tool can show how many days have passed since that date.
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