1. What is Date Subtraction?

Date subtraction calculates the number of days between two dates. This is useful for project planning, age calculation, interest computation, and many other applications.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Date1 \) — The earlier date (YYYY-MM-DD format)
• \( Date2 \) — The later date (YYYY-MM-DD format)

Explanation: The calculation accounts for all calendar days including leap years and varying month lengths.

3. Importance of Date Calculation

Details: Accurate date subtraction is essential for project timelines, financial calculations, legal deadlines, and scientific research.

4. Using the Calculator

Tips: Enter both dates in YYYY-MM-DD format. The calculator will determine the absolute number of days between them.

5. Frequently Asked Questions (FAQ)

Q1: Does the calculator include both start and end dates?
A: No, it calculates the days between the dates (exclusive of the end date by default).

Q2: How are leap years handled?
A: The calculation automatically accounts for leap years in the period.

Q3: What's the maximum date range?
A: The calculator can handle any valid Gregorian calendar dates.

Q4: Can I calculate time differences too?
A: This version calculates full days only. For time calculations, a more advanced calculator would be needed.

Q5: What if I enter dates in the wrong order?
A: The calculator will return a positive number regardless of which date is earlier.