Time Converter
Convert milliseconds, seconds, minutes, hours, days, weeks, and years instantly.
Time Conversion Formulas
Time is universally measured across standard units from milliseconds to years. These units are exact except for the year, which uses 365.25 days to account for leap years.
- 1 minute = 60 seconds
- 1 hour = 60 minutes = 3,600 seconds
- 1 day = 24 hours = 1,440 minutes = 86,400 seconds
- 1 week = 7 days = 168 hours = 604,800 seconds
- 1 year = 365.25 days = 8,766 hours = 31,557,600 seconds
- 1 millisecond = 0.001 seconds
Hours to Minutes Quick Reference
| Hours | Minutes |
|---|---|
| 0.25 hr | 15 min |
| 0.5 hr | 30 min |
| 1 hr | 60 min |
| 2 hr | 120 min |
| 3 hr | 180 min |
| 4 hr | 240 min |
| 6 hr | 360 min |
| 8 hr | 480 min |
| 12 hr | 720 min |
| 24 hr | 1,440 min |
Frequently Asked Questions
How many seconds are in a day?
1 day = 24 hours × 60 minutes × 60 seconds = 86,400 seconds.
How many minutes are in a year?
1 year ≈ 525,960 minutes (using 365.25 days).
How many weeks are in a year?
There are 52.1775 weeks in a year (365.25 ÷ 7).
How do I convert hours to minutes?
Multiply hours by 60. For example, 2.5 hours = 150 minutes.