Time Converter
Time Converter: convert between 5 time units, for example 1 h = 60 min.
| Unit | Value |
|---|---|
| hour to millisecond | 3600000 ms |
| hour to second | 3600 s |
| hour to minute | 60 min |
| hour (h) | 1 h |
| hour to day | 0.04166666667 d |
Convert between milliseconds, seconds, minutes, hours and days. These are fixed durations: a day is 86 400 s, and calendar effects such as leap seconds and time zones are not included.
Time unit definitions
- millisecond (ms)
- The millisecond (ms) is one thousandth of a second.
- second (s)
- The second (s) is the SI base unit of time, defined by fixing the caesium-133 hyperfine transition frequency at exactly 9 192 631 770 Hz.
- minute (min)
- The minute (min) is 60 seconds. It is a non-SI unit accepted for use with the SI.
- hour (h)
- The hour (h) is 3600 seconds, or 60 minutes. It is a non-SI unit accepted for use with the SI.
- day (d)
- The day (d) is exactly 86 400 seconds (24 hours). Calendar days that contain a leap second are not covered by this fixed conversion.
All time conversions
From milliseconds
From seconds
From minutes
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Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures.
Last reviewed: .