1. What is the 90 Days Calculator?

The Over 90 Days Calculator calculates a date that is exactly 90 days after a given start date. This is useful for various planning, legal, and medical purposes where a 90-day period needs to be tracked.

2. How Does the Calculator Work?

The calculator uses a simple date addition formula:

The calculation accounts for varying month lengths and leap years automatically.

3. Importance of Date Calculation

Details: Accurate date calculation is crucial for legal deadlines, medication schedules, project planning, and various compliance requirements that specify 90-day periods.

4. Using the Calculator

Tips: Enter the start date in YYYY-MM-DD format. The calculator will automatically compute the date exactly 90 days later.

5. Frequently Asked Questions (FAQ)

Q1: Does this account for leap years?
A: Yes, the calculation automatically accounts for leap years and varying month lengths.

Q2: What if my start date is February 29th?
A: The calculator will properly handle leap day dates and return March 30th of the following year (or March 1st in non-leap years).

Q3: Can I calculate business days instead of calendar days?
A: This calculator counts all days including weekends and holidays. For business days only, a different calculator would be needed.

Q4: What's the maximum date range this can handle?
A: The calculator can handle dates between 1970 and 2037 on most systems.

Q5: Can I calculate dates before the start date?
A: This calculator only adds days. For date subtraction, use a date difference calculator.