About 90-Day Deadlines

90-day periods are commonly used for probationary employment periods, product trials, legal notices, and short-term project planning. This calculation helps you determine exact dates while accounting for calendar variations.

How to Use This Calculator

Select your starting date (or click "Set to Today")
Click "Calculate 90 Days" to see the result
Use the converter to see equivalent weeks and months

Examples

If today is March 15, 2023, 90 days later is June 13, 2023
A 90-day trial period starting January 1 ends March 31 (non-leap year)
90 business days (excluding weekends) from a date requires additional calculation

Days	Weeks	Months (approx)
30	4.29	0.99
60	8.57	1.97
90	12.86	2.96
180	25.71	5.92

Frequently Asked Questions

Does 90 days equal 3 months?

Not exactly. Most months have 30-31 days, so 90 days is approximately 3 months, but the exact date varies depending on which months are included.

How are leap years handled?

The calculator automatically accounts for leap years when calculating dates, ensuring accurate results regardless of February length.

Is day 1 counted as day 0 or day 1?

This calculator uses inclusive counting, meaning the start date is day 1. 90 days from a date includes that starting day.

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90 Days From Today Calculator Deadline Tracker

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