Time units explained
| Unit | Symbol | Definition |
|---|---|---|
| Millisecond | ms | A millisecond is one thousandth of a second. |
| Second | s | The second is the SI base unit of time, defined by caesium-133 atomic transitions. |
| Minute | min | A minute is 60 seconds. |
| Hour | h | An hour is 60 minutes or 3,600 seconds. |
| Day | d | A day is 24 hours (86,400 seconds). |
| Week | wk | A week is 7 days. |
| Month (average) | mo | An average Gregorian month is 30.436875 days (1/12 of a 365.2425-day year). Calendar months vary from 28 to 31 days. |
| Year (average) | yr | An average Gregorian year is 365.2425 days, accounting for leap years. |
All time conversions
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