What is Date Difference?
The Date Difference Calculator finds the exact number of days, weeks, and months between any two dates. Useful for project timelines, contract durations, event planning, and tracking milestones.
Formula
Days = |End Date − Start Date| (in milliseconds) / (1000 × 60 × 60 × 24) Weeks = Days / 7 Months ≈ Days / 30.44 Working Days ≈ Days × 5/7
How to use this Date Difference Calculator?
1. Enter the start date. 2. Enter the end date. 3. See the difference in days, weeks, months, and working days.