1. What is 120 Days Ago From Today?

This calculator determines the date that was 120 days ago from any given date, showing the result in month/day/year format along with the exact months and days difference.

2. How Does the Calculator Work?

The calculator uses PHP's DateTime functions to:

Where:

• Current Date — The reference date you provide
• 120 days — The fixed period to subtract
• Target Date — The calculated past date

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 useful for financial calculations, legal deadlines, project planning, and historical research.

4. Using the Calculator

Tips: Enter any valid date in YYYY-MM-DD format or use today's default date. The calculator will show the date 120 days prior and the exact months/days difference.

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's the maximum date range?
A: The calculator can handle any valid date within PHP's DateTime range (typically years 1901-2038 on 32-bit systems).

Q3: Can I calculate future dates?
A: This specific calculator only calculates past dates, but the same method could be adapted for future dates.

Q4: Why show months difference?
A: Months provide a more intuitive understanding of the time span for many users compared to days alone.

Q5: Is the time of day considered?
A: No, this calculator works with calendar dates only, not specific times.