MeasureCalc

Time Converter

Convert units in the time converter category with fast, accurate online tools.

About time units

Timekeeping uses SI seconds (s) and civil units like minutes, hours, days, weeks and years.

  • Hour: 3,600 s.
  • Leap year: adds one day roughly every 4 years.

Units in Time Converter

Browse common units in this category and learn where they are typically used.

  • Day (day)
    Day = 24 hours (civil definition).
  • Hour (h) (h)
    Hour = 60 minutes = 3,600 seconds.
  • Minute (min) (min)
    Minute = 60 seconds.
  • Second (s) (s)
    Second is the SI base unit of time, defined via cesium-133 oscillations.
  • Week (week)
    Week = 7 days, globally used.
  • Year (365 d) (year)
    Year (365 d) is a time unit used to measure duration and intervals.

Popular time conversions

Start with some of the most frequently used conversions in this category.

Quick examples

Open a few ready-made examples for common real-world conversions.

FAQ

Is time conversion exact?
Many conversions are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Can I share a specific result?
Yes. Every converter has a clean, shareable URL like /convert/meter-to-foot/2.5.

Browse other categories

Explore other measurement categories available on MeasureCalc.