HesapHanem

Time Converter

Convert between time units.

Result

5,400.00
90.00
1.50
0.0625
0.008929

How it is calculated

Every unit is first converted to seconds, then divided down to the others. The factors are: 1 minute = 60 s, 1 hour = 3,600 s, 1 day = 86,400 s and 1 week = 604,800 s. So seconds = value × factor of the unit you chose, minutes = seconds ÷ 60, hours = seconds ÷ 3,600, days = seconds ÷ 86,400 and weeks = seconds ÷ 604,800. The tool shows all five results at once, with two decimals, and with more digits for values below 1. A day is exactly 24 hours here, so calendar effects such as daylight-saving changes, leap seconds, and months of different length are not part of the calculation.

Worked example

Convert 90 minutes. Seconds = 90 × 60 = 5,400. Minutes = 5,400 ÷ 60 = 90. Hours = 5,400 ÷ 3,600 = 1.5. Days = 5,400 ÷ 86,400 = 0.0625, which rounds to 0.06. The tool shows 5,400.00 seconds, 90.00 minutes, 1.50 hours and 0.06 days.

Try this example →

Common mistakes

  • Leaving the unit on the wrong setting. The default is hours, so typing 90 meaning minutes gives 90 hours (5,400 minutes) instead.
  • Reading 1.5 hours as 1 hour 5 minutes. The decimal is a fraction of an hour: 0.5 hour is 30 minutes.
  • Expecting a month or year result. The tool stops at days; a month has no fixed length in seconds.
  • Assuming rounding hides nothing. 0.06 days is rounded from 0.0625, so use the seconds or hours column for precision.
  • Mixing it up with clock time. 90 minutes is a duration, not 9:00 or 1:30 on a clock.

About this calculator

This tool converts a duration between seconds, minutes, hours, days and weeks, handling the mixed base-60/base-24/base-7 arithmetic (60 seconds to a minute, 60 minutes to an hour, 24 hours to a day, 7 days to a week) that makes time awkward to convert by hand compared to metric units.

Project managers converting a task estimate given in hours into days for a schedule, developers converting a timeout or delay value between milliseconds-adjacent units, and students working through physics or chemistry problems that mix units (a reaction time in seconds within a process measured in hours) all use this to avoid an off-by-60 or off-by-24 error.

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Comments (1)

  • Editorial team

    A common use is turning a task estimate into schedule days. The days column divides by 24 hours, so 36 hours shows 1.50 days, but a working day is closer to 8 hours, so divide the hours result by 8 instead. Which time conversion do you end up doing most often?

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