Time Conversion Table
How time units relate, and a decimal-hours chart for timesheets and billing.
Factor grid
| s | min | h | d | wk | |
|---|---|---|---|---|---|
| 1 s | 1 | 0.0166667 | 0.000277778 | 0.0000115741 | 0.0000016534 |
| 1 min | 60 | 1 | 0.0166667 | 0.000694444 | 0.0000992063 |
| 1 h | 3,600 | 60 | 1 | 0.0416667 | 0.00595238 |
| 1 d | 86,400 | 1,440 | 24 | 1 | 0.142857 |
| 1 wk | 604,800 | 10,080 | 168 | 7 | 1 |
Longer periods
| Period | Days | Notes |
|---|---|---|
| Common year | 365 | 52 weeks + 1 day |
| Leap year | 366 | 52 weeks + 2 days |
| Average Gregorian year | 365.2425 | over the 400-year cycle |
| Average month | 30.436875 | 365.2425 ÷ 12 |
| Decade | 3,652 or 3,653 | depends on leap years |
Decimal hours to minutes
| Decimal hours | Minutes |
|---|---|
| 0.05 | 3 |
| 0.1 | 6 |
| 0.15 | 9 |
| 0.2 | 12 |
| 0.25 | 15 |
| 0.3 | 18 |
| 0.4 | 24 |
| 0.5 | 30 |
| 0.6 | 36 |
| 0.7 | 42 |
| 0.75 | 45 |
| 0.8 | 48 |
| 0.9 | 54 |
| 1 | 60 |