UTILITIES / FREE ONLINE TOOL
Date Difference Calculator
Count calendar days and weeks between two dates.
Free to use On-device processing No account needed
Your workspace Runs privately in your browser
Your result
A little guidance.
Find the signed difference between two calendar dates using UTC midnight, avoiding daylight-saving-hour changes. Choose whether to include the ending day.
How it works
- Enter your values, or use the example to get started.
- Select “Calculate difference” to process your input in your browser.
- Review the result, then copy or download it when available.
Good to know.
Is this a working-day calculator?
No. It counts all calendar days, including weekends and holidays. Reversing the dates produces a negative result.
Is my input sent to a server?
No. This tool runs in your browser. KILIZU does not upload or store the values or files you enter here.