Time Converter

Start with an amount of elapsed time and select its unit. The main result shows your chosen target unit, while the other results let you compare the same duration in seconds, minutes, days, and more. Use Show All for the additional units.

For a recording lasting 5,400 seconds, choose seconds as the source and hours as the target. Dividing by 3,600 gives 1.5 hours; the same recording lasts 90 minutes or 5,400,000 milliseconds.

Enter decimal quantities such as 1.5, rather than clock notation such as 1:30. This page converts lengths of time. It does not determine the time of day after a journey or the date on which a deadline falls.

Months, quarters, and years use fixed averages. One month therefore converts to 730.485 hours here. That is useful for comparing approximate durations, but it is not the length of every calendar month.

A particular February, a leap year, or a three-month subscription needs actual start and end dates. Likewise, a “day” here always means 24 hours; the tool does not account for local clock changes. Decades and centuries use 10 and 100 of the averaged years.

Milliseconds, microseconds, and nanoseconds are separated by factors of 1,000. A delay of 250 milliseconds is 0.25 seconds, 250,000 microseconds, or 250,000,000 nanoseconds. A misplaced unit can therefore change a result by a thousandfold.

The plain-language summary shows at most two nonzero units. For example, 3,661 seconds is summarized as “1 hour, 1 minute,” leaving out the remaining second. Use the numeric conversion when those smaller amounts matter.

Increase the decimal setting if a small nonzero result rounds to zero. Very large or very small values may use scientific notation: 1e-7 means 0.0000001. Copy includes the selected result’s unit.