Unit Converter
Convert between common units of length, mass, and area.
EverydayEveryday tools
Date Difference Calculator
Count calendar days and weeks between two dates.
Your workspaceProcessed in your browser
Loading workspace…
How to use date difference calculator
- Select a valid Start date and End date.
- Select Convert / calculate to subtract start from end.
- Read Days, Complete weeks, and Remaining days with the start-date exclusion in mind.
Work through an example
Calculate a two-week date interval, interpret signed results, and distinguish calendar subtraction from elapsed clock hours.
Count calendar days with an explicit start-date rule →Formats, privacy, and practical limits
This tool processes the values you enter in your browser. No account or upload to ERITHRA is required.
Files and generated results exist only for this tab session. Download any result you want to keep before leaving the page. Browsers may use temporary memory or disk cache while processing.
Frequently asked questions
Does the total include the start date?
No. It calculates end date minus start date. Identical dates give zero days.
Does it count working days or apply holidays?
No. It counts calendar-day boundaries using UTC date arithmetic and does not apply a weekend or holiday calendar.