1. What Is A 90 Day Date Calculator Add Days?

This calculator helps you determine the date that is exactly 90 days after a specified start date. It's useful for planning purposes, tracking deadlines, or calculating future events.

2. How Does The Calculator Work?

The calculator uses a simple date addition formula:

The calculation accounts for varying month lengths and leap years to ensure accurate results.

3. Importance Of Date Calculation

Details: Calculating dates 90 days in the future is important for various purposes including legal deadlines, project planning, medication schedules, and financial planning.

4. Using The Calculator

Tips: Simply enter your start date in YYYY-MM-DD format and click calculate. The result will show the date exactly 90 days later.

5. Frequently Asked Questions (FAQ)

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

Q2: What if I need to calculate business days instead?
A: This calculator counts calendar days. For business days (excluding weekends), a different calculation is needed.

Q3: Can I calculate dates more than 90 days?
A: This calculator is specifically for 90 days, but you could use it multiple times for longer periods.

Q4: What's the maximum date range this can handle?
A: The calculator can handle any valid date within the range supported by PHP's DateTime functions.

Q5: Does the time of day matter in the calculation?
A: No, the calculation is based on calendar days only, regardless of time.