Time
Step-by-step solution: Convert 90 min to h = 1.5 h
1. Express both units through the base unit:
1 min = 60 s, 1 h = 3600 s
1 min = 60 : 3600 h = 1/60 ≈ 0.01666666667 h
2. Divide the value by 60:
90 min = 90 : 60 h = 1.5 h
In days, hours, minutes and seconds this is 1 h 30 min.
The same value in other units:
| Unit | Symbol | Value |
|---|---|---|
| nanosecond | ns | 5,400,000,000,000 |
| microsecond | µs | 5,400,000,000 |
| millisecond | ms | 5,400,000 |
| second | s | 5400 |
| minute | min | 90 |
| hour | h | 1.5 |
| day | d | 0.0625 |
| week | wk | ≈ 0.008928571429 |
| month (30 days) | mo | ≈ 0.002083333333 |
| year (365 days) | yr | ≈ 0.0001712328767 |
| leap year (366 days) | leap yr | ≈ 0.0001707650273 |
| century (36,525 days) | century | ≈ 0.000001711156742 |
Got it? Now solve one yourself.
Test yourselfThe time converter converts seconds, minutes, hours, days, weeks, months, years and centuries, as well as milliseconds, microseconds and nanoseconds. Besides the conversion, the calculator splits the result into days, hours, minutes and seconds — for example, 100,000 s = 1 d 3 h 46 min 40 s.
Time unit relations
| Unit | Relation | In seconds |
|---|---|---|
| 1 minute | 60 s | 60 |
| 1 hour | 60 min | 3600 |
| 1 day | 24 h | 86,400 |
| 1 week | 7 days | 604,800 |
| 1 year | 365 days (leap year — 366) | 31,536,000 |
| 1 second | 1000 ms = 1,000,000 µs | 1 |
Unlike metric units, time is converted with factors 60, 24 and 7 rather than powers of ten, so results are often fractional: 90 min = 90 : 60 = 1.5 h = 1 h 30 min.
Months and years vary in length, so the calculator uses a 30-day month, a 365-day year and a 36,525-day century (100 years of 365.25 days, as in astronomy).
Comments
No comments yet.