Date calculator
Your exact age, how many days until something, or what date it will be in 90 days. All instantly.
Everything happens in your browser: your files are never uploaded to a server.
How to use it
- Pick what to calculate: your age, days between two dates or adding time to a date.
- Type the dates.
- The result appears instantly.
FAQ
Does it count leap years?
Yes. It uses the real calendar, with 28- and 29-day Februaries.
What are working days?
Monday to Friday. It does not subtract public holidays, which vary by country.
What if I add a month to January 31?
You get the last day of February (28 or 29), which is what "one month later" usually means.
Is my birth date stored?
No. It is calculated in your browser and never saved or sent.
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