Add / subtract days
Date Calculator
Add or subtract a number of calendar days from any date.
Resulting date—Loading today's date…
How this calculator works
The calculator uses calendar-day arithmetic, so every step advances or reverses one date regardless of daylight-saving changes.
The tool is arithmetic only. Where legal, payroll, holiday, timezone or jurisdiction-specific rules matter, the page states what is and is not included.
Frequently asked questions
Does it skip weekends?
No. This page counts calendar days. Use the business days calculator to exclude Saturdays and Sundays.
Can I add weeks, months or years instead of days, or exclude weekends and holidays?
Not on this page — it deliberately stays to whole calendar days only. Use the Workday Calculator for weeks/months/years units, working-day-only offsets, custom holiday exclusions and a previous/next-working-day adjustment.