Time Unit Converter

Free online time unit converter. Easily convert between seconds, minutes, hours, days, weeks, months, and years. Instant calculations with our user-friendly time conversion tool.

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Common Time Unit Conversions

Basic Units

  • 1 minute = 60 seconds
  • 1 hour = 60 minutes = 3,600 seconds
  • 1 day = 24 hours = 1,440 minutes
  • 1 week = 7 days = 168 hours

Extended Units

  • 1 month (avg) = 30.44 days
  • 1 year = 365 days = 52 weeks + 1 day
  • 1 year = 8,760 hours
  • 1 year = 525,600 minutes

Converting Time Units

Our time unit converter 🔄 helps you convert between different units of time measurement quickly and accurately. Whether you're working with seconds or years, this tool handles all conversions automatically.

Understanding Time Units

Time units are measurements used to sequence events and compare durations. The standard units of time include:

  • Seconds: The base unit of time in the International System of Units (SI)
  • Minutes: Used for short durations in everyday life
  • Hours: The primary unit for daily scheduling
  • Days: Based on Earth's rotation period
  • Weeks: Traditional seven-day periods
  • Months: Approximately one lunar cycle
  • Years: Based on Earth's orbital period around the Sun

Time Units Comparison Table

Unit  Seconds  Minutes  Hours  Days 
1 Minute  60 1 0.0167 0.0007
1 Hour 3,600 60 1 0.0417
1 Day 86,400 1,440 24 1
1 Week 604,800 10,080 168 7

Historical Time Measurements

Throughout history, different civilizations have developed various ways to measure time:

  • Ancient Egypt: Used sundials and water clocks (clepsydras)
  • Babylonians: Developed the sexagesimal (base-60) system we still use for minutes and seconds
  • Medieval Europe: Introduced mechanical clocks and standardized hours
  • Modern Era: Atomic clocks provide unprecedented precision, measuring time using cesium atoms

Common Use Cases

Time unit conversion is essential for various applications:

  • Project planning and scheduling
  • Scientific calculations
  • Programming and system timing
  • Event planning and coordination
  • Travel time calculations
  • Data processing intervals

Interesting Time Facts

  • A light-year is a measure of distance, not time, equal to about 9.46 trillion kilometers
  • The ancient Egyptians were the first to divide the day into 24 hours
  • The rotation of the Earth is gradually slowing, making days slightly longer over millions of years
  • Leap seconds are occasionally added to UTC to account for variations in Earth's rotation
  • The most accurate atomic clocks lose only one second every 14 billion years

date unit converter tools

Note on Precision

For months and years, we use average values:

  • 1 month = 30.44 days (average)
  • 1 year = 365 days (common year)
  • Leap years (366 days) are not factored into these calculations