1. What is Time Difference Calculation?

The time difference calculation converts the difference between two timestamps (in seconds) into hours. This is useful for tracking durations, calculating work hours, or any application where you need to measure elapsed time.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( End \) — End time in seconds
• \( Start \) — Start time in seconds
• 3600 — Number of seconds in one hour (60 seconds × 60 minutes)

Explanation: The formula subtracts the start time from end time to get duration in seconds, then converts to hours by dividing by 3600.

3. Importance of Time Calculation

Details: Accurate time calculation is essential for payroll systems, scientific experiments, sports timing, and any application where precise duration measurement is required.

4. Using the Calculator

Tips: Enter both times in seconds (Unix timestamps or any consistent time measurement). The end time must be greater than start time for valid results.

5. Frequently Asked Questions (FAQ)

Q1: Can I use this with minutes instead of seconds?
A: Yes, but you would need to adjust the formula to divide by 60 instead of 3600 to get hours from minutes.

Q2: What if my timestamps are in milliseconds?
A: First convert milliseconds to seconds (divide by 1000) or adjust the formula to divide by 3,600,000.

Q3: How precise is this calculation?
A: The calculator shows results with 4 decimal places (about 1/3 second precision).

Q4: Can I calculate days with this?
A: Yes, by dividing by 86400 (seconds in a day) instead of 3600.

Q5: What's the maximum time difference this can handle?
A: Limited only by PHP's number handling, which can handle very large time differences.