Date Difference Calculator — Count Days Between Two Dates Online
Calculate days, weeks, months, and years between any two calendar dates.
Interactive Tool Workspace
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Processing Limits & Device Capabilities
Processed client-side in browser memory. Recommended maximum file size is 50 MB on desktop and 15 MB on mobile.
Zero Cloud Transmission: Zero bytes are uploaded to any server. File handling is constrained only by available device RAM.
How to Use Date Difference Calculator
- Select the start date.
- Select the end date.
- View total elapsed days, full weeks, and calendar months.
About Date Difference Calculator
Date Difference Calculator accurately counts calendar intervals for project deadlines, contract durations, vacation planning, and legal notice periods.
Frequently Asked Questions
Can I include or exclude the end date?
By default, it measures duration between dates. Adding 1 day includes both start and end days.