1. What is 120 Days Ago From Today?

This calculator determines the date that was exactly 120 days before today or any specified date. It's useful for tracking past events, meeting deadlines, or calculating time periods in various applications.

2. How Does the Calculator Work?

The calculator uses simple date arithmetic:

Where:

• Current Date — The reference date (defaults to today)
• 120 days — The fixed period to subtract

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

3. Importance of Date Calculation

Details: Calculating dates 120 days in the past is important for financial planning, legal deadlines, project management, and personal record-keeping.

4. Using the Calculator

Tips: Enter any valid date (defaults to today) and click calculate. The result shows the date 120 days prior in YYYY-MM-DD format with the day of week.

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: Can I use dates in the future?
A: Yes, the calculator works with any valid date, past or future.

Q3: What's the maximum range this can calculate?
A: The calculator can handle any date within the range supported by PHP's DateTime class (typically 1970-2038 on 32-bit systems).

Q4: How precise is this calculation?
A: The calculation is precise to the day, accounting for all calendar variations.

Q5: Can I calculate business days only?
A: This calculator counts calendar days. For business days (excluding weekends/holidays), a different calculation is needed.