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.