Time Converter
Convert between 13 time units instantly. Enter a value, pick your units and get the result with the formula, a full conversion table and worked examples.
1 h in all time units
Updates live as you type. Click a row to set it as the target unit.
| Unit | Symbol | Value |
|---|---|---|
| Nanosecond | ns | 3,600,000,000,000 |
| Microsecond | µs | 3,600,000,000 |
| Millisecond | ms | 3,600,000 |
| Second | s | 3,600 |
| Minute | min | 60 |
| Hour | h | 1 |
| Day | d | 0.0416667 |
| Week | wk | 0.00595238 |
| Fortnight | fn | 0.00297619 |
| Month (average) | mo | 0.00136895 |
| Year (Gregorian) | yr | 0.000114079 |
| Decade | dec | 0.0000114079 |
| Century | c | 0.00000114079 |
How to Convert Time Units
Time measures the duration of events. The SI unit is the second (s); the month and year here use average Gregorian lengths (365.2425 days per year).
Every unit on this page is stored as a fixed factor relative to one reference unit, the second (s). Converting is a two step multiply and divide:
- Multiply your value by the factor of the source unit to get the value in s.
- Divide that result by the factor of the target unit.
Hour to Second conversion table
| Hour (h) | Second (s) |
|---|---|
| 1 h | 3,600 s |
| 2 h | 7,200 s |
| 3 h | 10,800 s |
| 4 h | 14,400 s |
| 5 h | 18,000 s |
| 6 h | 21,600 s |
| 7 h | 25,200 s |
| 8 h | 28,800 s |
| 9 h | 32,400 s |
| 10 h | 36,000 s |
| 15 h | 54,000 s |
| 20 h | 72,000 s |
| 25 h | 90,000 s |
| 30 h | 108,000 s |
| 40 h | 144,000 s |
| 50 h | 180,000 s |
| 75 h | 270,000 s |
| 100 h | 360,000 s |
| 250 h | 900,000 s |
| 500 h | 1,800,000 s |
| 1,000 h | 3,600,000 s |
Time Units and Conversion Factors
Value of one unit expressed in s.
| Unit | Symbol | In s |
|---|---|---|
| Nanosecond | ns | 1 × 10−9 |
| Microsecond | µs | 0.000001 |
| Millisecond | ms | 0.001 |
| Second | s | 1 |
| Minute | min | 60 |
| Hour | h | 3,600 |
| Day | d | 86,400 |
| Week | wk | 604,800 |
| Fortnight | fn | 1,209,600 |
| Month (average) | mo | 2,629,746 |
| Year (Gregorian) | yr | 31,556,952 |
| Decade | dec | 315,569,520 |
| Century | c | 3,155,695,200 |
Frequently Asked Questions
What is the SI unit of time?
The SI unit of time is the second (s). Time measures the duration of events.
How do I convert hour to min?
To convert hour (h) to minute (min), multiply the value in hour by 60. For example, 1 h = 60 min.
How do I convert day to hour?
To convert day (d) to hour (h), multiply the value in day by 24. For example, 1 d = 24 h.
How do I convert min to second?
To convert minute (min) to second (s), multiply the value in min by 60. For example, 1 min = 60 s.
Can I see a value in every time unit at once?
Yes. Enter a value and choose the source unit; the "all units" table below the converter instantly lists the equivalent in all 13 supported units. Click any row to make it the target unit.
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