What is the Days Until Calculator?
"How many days until…?" is one of the most common date questions: an exam, wedding, flight, visa appointment or the end of a contract. The days until calculator answers it instantly and keeps counting down live in days, hours, minutes and seconds.
It also shows weeks, weekends and working days left, which helps with planning leave or study time. For popular dates there are ready-made pages, such as Days Until Ramadan and Days Until 14 August. To count backwards from a past date, use Days Since Calculator.
How to use the Days Until Calculator
- Choose the target date (and time, if needed).
- Choose whether to include the end date.
- Read the days left and the live countdown.
- Check weeks, weekends and working days.
Formula
Days until = target date − today
Example
From 10 October to 25 December there are 76 days, which is 10 weeks and 6 days, or 54 working days.
Popular countdowns
Inclusive or exclusive counting?
By default, the start day is not counted, which matches how most people say "in 5 days". If you need both the first and last days counted, for example for a leave application, tick "include end date" and one day is added.
More free date and time tools
Planning around dates usually needs more than one answer. These related tools work the same way, instantly in your browser and free:
- Date calculator: add or subtract days, weeks, months or business days.
- Date difference calculator: the exact time between two dates.
- Age calculator: your exact age in years, months and days.
- Time zone converter: the same moment in Pakistan, the Gulf, the UK and the USA.
- Online timer: a countdown with an alarm sound.
- Year calendar: all 12 months with week numbers and holidays.
Frequently asked questions
How do I calculate days until a date?
Subtract today's date from the target date. The calculator does this for you, including leap years.
Does it count today?
Not by default. Tick "include end date" to count both days.
Can I count working days only?
Yes, working days (Monday to Friday) are shown below the result.
Can I share the countdown?
Use the countdown maker to create a shareable link.
Does it work in my time zone?
Yes, it uses the clock and time zone on your device.
Is the Days Until Calculator free to use?
Yes. The Days Until Calculator on Custom Converter is completely free, with no sign-up, no daily limit and no watermark.
Does the Days Until Calculator work on mobile phones?
Yes. It is built mobile-first and works on Android phones, iPhones, tablets and computers in any modern browser, with no app to install.