1. What is the 90 Day Calculator Global?

The 90 Day Calculator Global calculates the end date that is exactly 90 days after a given surgery date. This is commonly used in medical follow-up protocols and research studies.

2. How Does the Calculator Work?

The calculator uses a simple date calculation:

Where:

• \( Surgery\ Date \) — The date when the surgical procedure was performed
• \( 90\ days \) — Fixed 90-day follow-up period

Explanation: The calculation adds exactly 90 calendar days to the input surgery date to determine the follow-up endpoint.

3. Importance of 90-Day Calculation

Details: The 90-day postoperative period is a standard timeframe for assessing short-term surgical outcomes and complications in clinical research and quality improvement initiatives.

4. Using the Calculator

Tips: Enter the surgery date in YYYY-MM-DD format or use the date picker. The calculator will compute the date exactly 90 days later.

5. Frequently Asked Questions (FAQ)

Q1: Why is 90 days used as a standard period?
A: 90 days captures most short-term postoperative complications while allowing enough time for recovery from the immediate surgical stress.

Q2: Does this include weekends and holidays?
A: Yes, it counts all calendar days (not just business days).

Q3: How is leap year handled?
A: The calculation automatically accounts for leap years in the date computation.

Q4: Can I calculate dates before the surgery date?
A: This calculator only computes forward dates. For date ranges, use a different tool.

Q5: Is this calculator timezone-sensitive?
A: No, it uses simple date calculation without timezone consideration.