WHAT DATE IS X DAYS FROM NOW?
Calculator inputs and results
Choose a starting date and add or subtract calendar days. Weekdays-only mode skips Saturdays and Sundays; it does not account for public holidays.
How to use this calculator
What the result includes
- Add or subtract any number of days
- Weekdays-only (skip weekends) mode
- Result date + weekday + week breakdown
- Timeline arrow visual
- Preset buttons (90 days, etc.)
Adding days sounds simple. Calendars disagree. 📅
"What's 90 days from January 1?" requires crossing January (31 days), February (28 or 29), and part of March — and getting February right depends on the year. This calculator does the real walk through the calendar rather than the popular approximation of dividing by 30, which drifts by several days on any serious span.
Business days: the weekend skip 🏢
With weekdays-only mode, only Mondays through Fridays count. Adding 5 business days from a Friday lands on the next Friday (Sat/Sun are skipped entirely), which matches how courts, banks and most contract clauses count "working days". Public holidays are not excluded — local holiday calendars vary too much for a universal tool, so treat results as Mon–Fri counts.
Quick reference
| Question | Settings |
|---|---|
| What date is 90 days from now? | Add · 90 · calendar days |
| What date was 90 days ago? | Subtract · 90 · calendar days |
| Deadline in 20 business days? | Add · 20 · skip weekends |
| Due date style (+280)? | Add · 280 · calendar days |
Reverse mode 🔙
Subtraction answers the mirror question: "the package arrived March 3, shipping was 12 days — when did it leave?" Enter the arrival date, subtract 12, done. Same engine, opposite arrow.
Measuring an existing span instead of adding to a date? That's the Date Difference Calculator. Counting months or years? Those have their own tools too, all sharing one leap-aware engine. 🧮