← All toolsLoading…
Date Calculator
Plan sprints, contracts, and shipping windows using clear day-based math. Calculations use your browser clock and plain calendar dates (no time-of-day).
Difference between dates
Start date
End date
Span: 93 full calendar days between the two dates.
Add or subtract days
Base date
Days to add (negative subtracts)
How to use
Pick two dates to see how many full calendar days sit between them. In the second panel, nudge a base date forward or backward by any integer number of days—handy for SLA and trial expirations.