Time Calculator and Unit Converter

Convert between seconds, minutes, hours, days, weeks, months and years. Also supports small time units like milliseconds, microseconds and nanoseconds. Use the tools below for fast and accurate time conversion calculations.

Time Calculation / Conversion
The fastest tool that allows you to easily calculate and convert between all time units.

About Time Units

Time units are units used to measure time. The most commonly used time units in daily life are seconds, minutes, hours, days, weeks, months and years.

Basic Time Units

  • Second (s): The base unit of time in the International System of Units (SI).
  • Minute (min): 1 minute = 60 seconds
  • Hour (h): 1 hour = 60 minutes = 3600 seconds
  • Day: 1 day = 24 hours = 1440 minutes = 86400 seconds
  • Week: 1 week = 7 days = 168 hours
  • Month: Approximately 30.44 days (varies between 28-31 days)
  • Year: 1 year = 365.25 days = 8760 hours (accounting for leap years)

Small Time Units

For precise measurements, especially in science and technology, smaller time units are used:

  • Millisecond (ms): 1 second = 1000 milliseconds
  • Microsecond (μs): 1 second = 1,000,000 microseconds
  • Nanosecond (ns): 1 second = 1,000,000,000 nanoseconds
  • Picosecond (ps): 1 second = 1,000,000,000,000 picoseconds

Time Conversions

Converting between different time units requires specific conversion factors. The most common conversions include:

  • 1 minute = 60 seconds
  • 1 hour = 60 minutes = 3600 seconds
  • 1 day = 24 hours = 1440 minutes
  • 1 week = 7 days = 168 hours
  • 1 month ≈ 30.44 days = 730.5 hours
  • 1 year = 365.25 days = 8760 hours

Popular Time Conversions

Some of the most frequently searched time conversions include:

  • How many seconds equals 1 minute? (60 seconds)
  • How many minutes equals 1 hour? (60 minutes)
  • How many hours equals 1 day? (24 hours)
  • How many milliseconds equals 1 second? (1000 ms)
  • How many seconds equals 5 minutes? (300 seconds)
  • How many minutes equals 2 hours? (120 minutes)

Usage Areas

Time conversions are used in many areas of daily life:

  • Cooking and Baking: Recipe timing, cooking durations
  • Sports and Fitness: Exercise durations, race times
  • Work and Productivity: Time tracking, project planning
  • Science and Engineering: Experiment timing, process durations
  • Travel: Flight durations, time zone calculations
  • Education: Study schedules, exam durations
  • Entertainment: Movie lengths, game durations
  • Technology: Computer processing times, network delays

Time Measurement History

Time measurement has evolved throughout human history:

  • Ancient Times: Sundials and water clocks were used to measure time
  • Medieval Period: Mechanical clocks were developed
  • Modern Era: Atomic clocks provide the most accurate time measurements
  • Digital Age: Electronic devices synchronize time globally

Precision and Accuracy

Different time units are used depending on the required precision:

  • Daily Activities: Minutes and hours are sufficient
  • Sports Timing: Milliseconds and hundredths of seconds
  • Scientific Research: Microseconds and nanoseconds
  • Computer Systems: Nanoseconds and picoseconds
  • Atomic Physics: Femtoseconds and attoseconds