Calculate time durations, add or subtract time, and convert between hours, minutes, seconds, and decimal hours.
A hours calculator helps you perform various time-related calculations, including calculating durations between two times, adding or subtracting time intervals, and converting between different time units.
For a work day from 9:00 AM to 5:00 PM with a 30-minute break:
Total time: 7 hours 30 minutes
Decimal hours: 7.5 hours
Total minutes: 450 minutes
Time calculations are essential for various purposes:
• Minutes to Hours: Hours = Minutes ÷ 60
• Hours to Minutes: Minutes = Hours × 60
• Decimal Hours to Hours:Minutes: Hours = integer part, Minutes = decimal part × 60
• Hours:Minutes to Decimal Hours: Decimal Hours = Hours + (Minutes ÷ 60)
Understanding these calculations can help you better manage your time, track work hours accurately, and improve your productivity.
| Hours | Minutes | Decimal Hours |
|---|---|---|
| 1 hour | 60 minutes | 1.00 |
| 1.5 hours | 90 minutes | 1.50 |
| 2 hours | 120 minutes | 2.00 |
| 2.5 hours | 150 minutes | 2.50 |
| 3 hours | 180 minutes | 3.00 |
| 3.5 hours | 210 minutes | 3.50 |
| 4 hours | 240 minutes | 4.00 |
| 7.5 hours | 450 minutes | 7.50 |
| 8 hours | 480 minutes | 8.00 |
• Standard work day: 8 hours
• Half-time: 4 hours
• Full work week: 40 hours
• Academic hour: 50 minutes
• Overtime threshold: 8 hours/day or 40 hours/week
When working across time zones:
• EST: Eastern Standard Time (UTC-5)
• CST: Central Standard Time (UTC-6)
• MST: Mountain Standard Time (UTC-7)
• PST: Pacific Standard Time (UTC-8)