How many days until your deadline? What date is 90 days from now? How many business days between two dates? Enter your dates and get instant answers — days, weeks, months, and business days.
Enter two dates — get days, weeks, months, and business days instantly.
Open Date Calculator| Function | Input | Output | Example |
|---|---|---|---|
| Days between dates | Start date + End date | Total days, weeks, months, business days | Jan 1 → Mar 15 = 73 days |
| Add days to date | Start date + number of days | Resulting date | Apr 3 + 90 days = Jul 2 |
| Subtract days | Start date + number of days | Earlier date | Apr 3 - 14 days = Mar 20 |
| Business days | Start date + End date | Weekdays only (Mon-Fri) | 73 days = 52 business days |
| Weeks between | Start date + End date | Weeks + remaining days | 73 days = 10 weeks, 3 days |
| Question | Calculation | Answer (from Apr 3, 2026) |
|---|---|---|
| What is 30 days from today? | Apr 3 + 30 | May 3, 2026 |
| What is 60 days from today? | Apr 3 + 60 | June 2, 2026 |
| What is 90 days from today? | Apr 3 + 90 | July 2, 2026 |
| What is 6 months from today? | Apr 3 + ~183 days | October 3, 2026 |
| What is 1 year from today? | Apr 3 + 365 | April 3, 2027 |
| How many days until Christmas? | Apr 3 → Dec 25 | 266 days |
| How many days until New Year? | Apr 3 → Jan 1, 2027 | 273 days |
Business days exclude weekends (Saturday and Sunday). This distinction matters for:
| Calendar Days | Business Days (approx) | Common Use |
|---|---|---|
| 7 | 5 | One work week |
| 14 | 10 | Two-week notice period |
| 30 | 21-22 | Net 30 payment, monthly cycle |
| 60 | 42-44 | Net 60, probation period |
| 90 | 63-66 | Net 90, quarterly review |
| 180 | 126-131 | 6-month review |
| 365 | 251-253 | Annual planning |
Calculate any date math — days between, add/subtract, business days, weeks.
Open Date Calculator