Time converter
Convert between milliseconds, seconds, minutes, hours, days, weeks, months and years.
1 hour = 60 minutes
Formula: minutes = hours × 60
About the units
Time units explained
Seconds, minutes, hours, days and weeks convert exactly. Months and years don't, because their length varies. UnitFlipr uses the average Gregorian year of 365.2425 days and an average month of one twelfth of that, about 30.44 days.
Quick reference
| Unit | Symbol | In seconds |
|---|---|---|
| millisecond | ms | 0.001 s |
| second | s | 1 s |
| minute | min | 60 s |
| hour | h | 3,600 s |
| day | d | 86,400 s |
| week | wk | 604,800 s |
| month (average) | mo | 2,629,746 s |
| year (average) | yr | 31,556,952 s |
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Frequently asked questions
How many seconds are in a day?
86,400 seconds (24 × 60 × 60).
How many hours are in a year?
About 8,766 hours on average, or 8,760 in a 365-day year and 8,784 in a leap year.