Date and Time Calculator
BetaAdd or subtract days, hours, and minutes from a specific date. Calculate the exact duration between two dates.
- Free
- No sign-up
- Runs in your browser
- Works on mobile
Date and Time Calculator at a glance
- Input
- Start Date and Duration
- Output
- Calculated Date and Time
- Privacy
- Everything happens on your device. Nothing is uploaded.
- Price
- Free, no account, no watermark.
How to use Date and Time Calculator
- 1Select whether you want to add/subtract time from a date, or calculate the difference between two dates.
- 2Enter your starting date and the duration you want to add or subtract.
- 3The tool instantly calculates the new resulting date and time.
Features
- Add or subtract years, months, weeks, days, hours, minutes, and seconds.
- Calculate the exact duration between two specific dates.
- Works entirely in your browser with live calculation.
- Considers leap years and varying month lengths automatically.
Date and Time Calculator FAQ
How does it handle leap years?
The calculator uses standard calendar math, meaning it automatically accounts for leap years when adding or subtracting time.
Can I calculate business days?
Currently, this tool calculates raw calendar days. A business day feature is coming soon.
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