90 Day Calculator
Find the date 90 days from today or from any date. Count back 90 days, skip weekends and holidays, count days between two dates, or see the last day of a 90 day visa stay.
Business days skip weekends and US federal holidays.
Example: Monday to Friday is 4 days, or 5 days if you include the end date.
Most countries count your entry day as day 1. So a 90 day stay ends on day 90, which is entry date plus 89 days. Always check the rules on your visa or entry stamp.
What is a 90 day calculator?
A 90 day calculator finds the date that is 90 days after or before another date. You pick a start date. The tool counts the days and shows the result, with the weekday.
Counting 90 days by hand is easy to get wrong. Months have 28, 29, 30 or 31 days. Some rules count the first day and some do not. This tool handles all of that.
You can change 90 to any number. It also counts the days between two dates and works out the last day of a visa stay.
90 days from today
Opens on today's date. The answer is ready right away.
Before or after
Count forward to a deadline or back to a past date.
Business days
Skip weekends and US federal holidays in one tap.
Visa stay
See your last legal day in the country.
How much time is 90 days?
Ninety days is about one quarter of a year. Here is the same length of time in other units.
How to use the 90 day calculator
Four steps. The result updates as you type.
- Pick a start dateIt opens on today. Choose any other date if you need to.
- Set the daysKeep 90 or tap 30, 60, 120, 180 or 365. Type any number you like.
- Choose what to countAll days, weekdays only, or business days without holidays.
- Read the resultSee the date, weekday and a calendar view. Add it to your calendar.
How to calculate 90 days from a date by hand
You can work it out with a calendar. Take away the days left in each month until you reach 90.
The simple method
Result date = Start date + 90 days
Last day of a stay = Entry date + 89 days
The second line is for rules that count the first day as day 1, like most visa stays.
| Example: start January 1, 2026 | Days used | Days left |
|---|---|---|
| Rest of January (Jan 2 to 31) | 30 | 60 |
| All of February (28 days) | 28 | 32 |
| All of March (31 days) | 31 | 1 |
| April 1 | 1 | 0 |
| Result: Wednesday, April 1, 2026 | 90 |
Calendar days, business days and day 1 rules
"90 days" can mean different things. Check which one your deadline uses before you count.
Calendar days
Every day counts, weekends and holidays too. Used for most visas, returns and loans.
Business days
Only Monday to Friday, without public holidays. Used for many work, shipping and legal deadlines. 90 business days is about 18 weeks.
Start day counts
Some rules say the start date is day 1. That makes the end one day earlier. Visa stays usually work this way.
90 days from today and other dates
This table updates every day. It shows common numbers of days counted from today, forward and back.
Need a date that is not here? Type any number into the calculator above.
| Days | From today | Days ago |
|---|
90 days from the first of each month in 2026
A quick reference for planning the year. Each date is exactly 90 days after the first day of the month.
| Start date | 90 days later | Start date | 90 days later |
|---|---|---|---|
| January 1, 2026 | Wed, April 1, 2026 | July 1, 2026 | Tue, September 29, 2026 |
| February 1, 2026 | Sat, May 2, 2026 | August 1, 2026 | Fri, October 30, 2026 |
| March 1, 2026 | Sat, May 30, 2026 | September 1, 2026 | Mon, November 30, 2026 |
| April 1, 2026 | Tue, June 30, 2026 | October 1, 2026 | Wed, December 30, 2026 |
| May 1, 2026 | Thu, July 30, 2026 | November 1, 2026 | Sat, January 30, 2027 |
| June 1, 2026 | Sun, August 30, 2026 | December 1, 2026 | Mon, March 1, 2027 |
90 days vs 3 months
People often treat 90 days and 3 months as the same. They are close, but not equal. Three months can be anywhere from 89 to 92 days. It depends on which months you count.
This matters for visas, contracts and returns. If a rule says 90 days, count days. If it says 3 months, count to the same date three months later.
| Start | 3 months later | Real days |
|---|---|---|
| January 1, 2026 | April 1, 2026 | 90 |
| February 1, 2026 | May 1, 2026 | 89 |
| March 1, 2026 | June 1, 2026 | 92 |
| July 1, 2026 | October 1, 2026 | 92 |
| December 1, 2026 | March 1, 2027 | 90 |
The 90 day rule in travel
Ninety days is the most common short stay limit in the world. Here are well known examples. Rules can change, so always check the official government site before you travel.
USA Visa Waiver
Travelers from Visa Waiver countries with an approved ESTA can visit for up to 90 days.
Schengen Area
Up to 90 days in any rolling 180 day period, across all Schengen countries together.
Japan
Many passport holders can visit Japan visa free as temporary visitors for up to 90 days.
Passport validity
For Schengen trips, your passport must be valid at least 3 months after the day you plan to leave.
Canada and Mexico
Visitors often get longer stays, but the officer at the border decides how long.
Entry day counts
Most countries count the day you arrive as day 1, even if you land late at night.
Other common 90 day deadlines
Ninety days shows up in work, money and daily life too.
Job probation
Many new jobs have a 90 day trial period. Mark the end date so you can plan a review.
Returns and warranties
Some stores and products give 90 days for returns or repairs.
Notice periods
Leases and contracts may ask for 90 days notice before you leave.
Bills and payments
Some invoices and loans are due 90 days after the issue date.
Goals and habits
A 90 day plan is long enough to see change and short enough to stay focused.
Trip planning
Count back 90 days from a trip to set dates for booking, visas and passports.
Common counting mistakes to avoid
Most date errors come from one of these. A quick check saves a lot of stress.
- Thinking 90 days is the same as 3 months. It is often 1 or 2 days off.
- Forgetting that February has 28 days, or 29 in a leap year.
- Not checking if the start day counts as day 1.
- Mixing up calendar days and business days.
- Forgetting public holidays when counting working days.
- Using the wrong time zone near midnight when you cross borders.
Frequently asked questions
Quick answers about counting 90 days.
What is the date 90 days from today?
Open the calculator. It starts on today's date and shows the answer at once, with the weekday.
Is 90 days the same as 3 months?
Not quite. Three months can be 89 to 92 days, depending on which months they are. Use days when a deadline says days.
How many weeks is 90 days?
90 days is 12 weeks and 6 days, or about 12.86 weeks.
How do I count 90 business days?
Pick Business days in the calculator. It skips Saturdays, Sundays and US federal holidays. 90 business days is about 18 calendar weeks.
How do I find the date 90 days ago?
Choose Days before. The tool counts back 90 days from your start date.
When must I leave on a 90 day visa?
If the entry day counts as day 1, you must leave by entry date plus 89 days. Use the Visa stay tab and check your visa rules.
Does the calculator include leap years?
Yes. February 29 is counted in leap years like 2028.
What does "include the end date" mean?
It adds one day to the count so both the first and the last day are counted. Use it for things like hotel nights or event days where both ends matter.
Can I count more or fewer than 90 days?
Yes. Type any number from 0 to 36,500 days, or tap a quick button like 30, 60, 180 or 365.
Which holidays are skipped for business days?
The tool skips the 11 US federal holidays, like New Year's Day, Memorial Day, Independence Day, Thanksgiving and Christmas. When a holiday falls on a weekend, the observed weekday is skipped.
Can I save the date to my calendar?
Yes. Press "Add to calendar" to download a small calendar file. Open it to add the date to Google, Apple or Outlook calendar.
Is the 90 day calculator free?
Yes. It is free with no sign up and works on any device.
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