Add Days to a Date
Find the date that is a given number of days before or after another date.
| Result date | Friday, January 8, 2027 |
|---|
How to use it
- Pick the start date (today by default).
- Choose add or subtract and enter the number of days.
Formula
Result = start date ± days (calendar days, weekends included)
Example
90 days after October 10, 2026 is Friday, January 8, 2027.
Questions
Does the start date count as day 1?
No. One day after October 10 is October 11.
Can I count business days only?
Not yet; this adds calendar days. The days-between-dates calculator shows the weekday count for a range.
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Last reviewed 2026-10-10. Found a mistake? Tell us.