Convert Time Easily

Convert between seconds, minutes, hours, days, weeks, months and years instantly.

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Time Converter – Seconds, Minutes, Hours, Days & More
Use our free Time Conversion Calculator to quickly convert between seconds, milliseconds, minutes, hours, days, weeks, months and years. Whether you’re working on equations, schedules, or scientific calculations, this tool provides fast and accurate time conversions.

Time is one of the most fundamental measurements in daily life and science. Since we use different units (seconds, minutes, hours, days, etc.), converting between them is often necessary for accuracy. For example:

  • 1 Minute = 60 Seconds
  • 1 Hour = 60 Minutes = 3600 Seconds
  • 1 Day = 24 Hours = 86,400 Seconds
  • 1 Week = 7 Days
  • 1 Year ≈ 365 Days (ignoring leap years)

Even a tiny miscalculation can cause big errors in science, navigation, or planning. Our time converter eliminates mistakes by giving instant results.

Our online time calculator is simple and accurate:

  • Step 1: Enter the time value you want to convert.
  • Step 2: Select the unit you want to convert from (e.g., seconds, minutes, hours).
  • Step 3: Choose the unit you want to convert to.
  • Step 4: Click “Convert” to see the instant result.

Great for time difference calculations, project scheduling, education, or research.

Here are the most widely used time measurement units:

  • Second (s): Base SI unit of time.
  • Millisecond (ms): 1/1000 of a second.
  • Minute (min): 60 seconds.
  • Hour (h): 60 minutes.
  • Day: 24 hours.
  • Week: 7 days.
  • Month: ≈ 30 or 31 days (depending on calendar).
  • Year: 365 or 366 days (leap year).

Quick conversions:

  • 1 ms = 0.001 s
  • 1 min = 60 s
  • 1 h = 3600 s
  • 1 day = 86,400 s

Time conversion is essential in many fields and situations, including:

  • Education – learning relationships between time units.
  • Travel & scheduling – adjusting across time differences.
  • Science & engineering – working with precise milliseconds, microseconds, or nanoseconds.
  • Everyday life – calculating hours in a week, days in a month, etc.
  • Programming & tech – converting timestamps and processing time data.

Our tool ensures accuracy without needing manual formulas.

  • Converts between seconds, minutes, hours, days, weeks, months and years.
  • Includes smaller units like milliseconds and nanoseconds.
  • Instant and precise results.
  • Free to use — no registration required.
  • Works seamlessly on desktop, tablet and mobile.

Yes. The Time Conversion Calculator is completely secure. No personal data is stored — all conversions happen instantly in your browser.