1. What is 30 Days Ago From Today?

This calculator helps you determine the date that was approximately 30 days (1 month) before a given date. It's useful for tracking monthly cycles, financial periods, or any regular monthly events.

2. How Does the Calculator Work?

The calculator uses simple date arithmetic:

Where:

• Input Date — The date you want to calculate from
• 30 days — Approximately equal to 1 month

Note: This is an approximation as months have varying lengths (28-31 days).

3. Importance of Date Calculation

Details: Calculating dates 30 days in the past is important for financial reporting, subscription tracking, medical cycles, and many business processes that operate on monthly cycles.

4. Using the Calculator

Tips: Simply enter any date in the format YYYY-MM-DD or use the date picker, then click Calculate. The calculator will show you the date that was 30 days prior.

5. Frequently Asked Questions (FAQ)

Q1: Is 30 days exactly equal to 1 month?
A: No, months vary in length from 28 to 31 days. This calculator uses 30 days as a monthly approximation.

Q2: How does this handle month boundaries?
A: The calculation automatically adjusts for different month lengths, including leap years.

Q3: Can I calculate business days instead?
A: This calculator counts calendar days. For business days (excluding weekends/holidays), a different calculator would be needed.

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

Q5: Can I calculate dates in the future?
A: This calculator subtracts 30 days, but you could modify it to add days for future dates.