1. What is the Hours Calculator?

The Hours Calculator calculates the duration in hours between two timestamps in seconds, following UK time format standards. It's useful for time tracking, payroll calculations, and project management.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

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

Explanation: The formula converts the difference between two timestamps from seconds to hours by dividing by 3600.

3. Importance of Time Calculation

Details: Accurate time calculation is crucial for payroll processing, billing clients, tracking work hours, and managing projects with time-based deliverables.

4. Using the Calculator

Tips: Enter both timestamps in seconds. The end time must be greater than the start time. The result will be displayed in hours with two decimal places.

5. Frequently Asked Questions (FAQ)

Q1: Why use seconds as input?
A: Many computer systems and APIs return timestamps in seconds, making this format widely compatible.

Q2: How do I convert regular time to seconds?
A: For HH:MM:SS format, calculate (hours×3600) + (minutes×60) + seconds.

Q3: Does this account for daylight saving time?
A: No, the calculator assumes both timestamps are in the same timezone. Account for DST changes before input.

Q4: Can I calculate minutes instead of hours?
A: Simply divide the result by 60 or modify the formula to divide by 60 instead of 3600.

Q5: What's the maximum time range this can calculate?
A: The calculator can handle any range as long as the timestamps fit in a PHP float variable.