Time Converter
Convert between different units of time with our easy-to-use calculator.
About Time Units
Time is a dimension used to sequence events and measure durations. Various units of time are used depending on the scale and context.
Common Time Units
- Nanosecond (ns): One billionth of a second (10-9 s). Used in computing and scientific measurements.
- Microsecond (μs): One millionth of a second (10-6 s). Used in computing and scientific measurements.
- Millisecond (ms): One thousandth of a second (10-3 s). Used in computing, audio processing, and sports timing.
- Second (s): The base unit of time in the International System of Units (SI).
- Minute (min): 60 seconds. Used for short durations in everyday life.
- Hour (h): 60 minutes or 3,600 seconds. Used for medium durations in everyday life.
- Day (d): 24 hours or 86,400 seconds. Based on Earth's rotation.
- Week (wk): 7 days or 604,800 seconds. A conventional unit used in many cultures.
- Month (mo): Approximately 30.44 days (varies). Based loosely on the Moon's orbital period.
- Year (yr): Approximately 365.24 days or 31,556,952 seconds. Based on Earth's orbit around the Sun.
- Decade: 10 years.
- Century: 100 years.
Conversion Formulas
To convert between time units, you need to know the conversion factors. Here are some common conversions:
- 1 minute = 60 seconds
- 1 hour = 60 minutes = 3,600 seconds
- 1 day = 24 hours = 1,440 minutes = 86,400 seconds
- 1 week = 7 days = 168 hours = 10,080 minutes = 604,800 seconds
- 1 year (average) = 365.2425 days = 8,765.82 hours = 525,949.2 minutes = 31,556,952 seconds
Applications
Time units are used in many fields:
- Everyday scheduling and planning
- Science and engineering (physics, astronomy, electronics)
- Computing (processor speeds, network latency)
- Sports and competitions (race timing)
- Music and audio production
- Project management and deadlines
Interesting Facts
- The second was originally defined as 1/86,400 of a mean solar day, but is now defined based on atomic transitions of cesium-133.
- Light travels approximately 300,000 kilometers in one second.
- The average human heartbeat lasts about 0.8 seconds.
- A nanosecond is to a second what a second is to about 31.7 years.