Date Calculator
Calculate the difference between two dates in days, weeks, months, and years
Start Date
End Date
About Date Calculator
Date calculations are useful for counting days until a deadline, anniversary, or event, calculating someone's age, or finding a date a certain number of days in the future or past. This calculator handles leap years and daylight saving time automatically, giving you accurate results for any date range.
FAQ
- How many days are in a leap year?
- A leap year has 366 days instead of the usual 365. A year is a leap year if it is divisible by 4, except for century years which must be divisible by 400. For example, 2000 was a leap year, but 1900 was not.
- How do I calculate the number of working days between two dates?
- Working days exclude weekends (Saturday and Sunday) and public holidays. To calculate manually, count the total days and subtract weekends and holidays. Our calculator counts all calendar days.
- What is the difference between calendar days and business days?
- Calendar days include all days including weekends and holidays. Business days (or working days) only count Monday through Friday, excluding public holidays.
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