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Time Converter

Convert time between seconds, minutes, hours, days, weeks, and average months or years.

Time

Months and years use average civil lengths (≈30.44 days / ≈365.24 days), not calendar months.

h → min

60 min

1 h

All units

UnitValue
Seconds (s)3,600
Milliseconds (ms)3,600,000
Minutes (min)60
Hours (h)1
Days (d)0.04166667
Weeks (wk)0.00595238
Months (avg) (mo)0.00136895
Years (avg) (yr)0.00011408

How it works

Time converters express a duration in seconds, minutes, hours, days, weeks, and approximate months or years for planning math.

Enter a value in one unit to see equivalents elsewhere. Seconds are the precise base; longer units multiply by standard counts (60, 24, 7, and so on).

“Average month” and “average year” options are conveniences for rough planning. Real months vary in length, and calendar math can include leap days.

Use cases include workout intervals, project timelines, media runtimes, and converting decimal hours from timesheets.

This tool converts durations—it does not convert time zones or clock faces across cities.

Frequently asked questions

How many days are in a year here?
Average-year conversions typically use 365.25 days to approximate leap years. For legal or payroll deadlines, use an actual calendar.
Why is a month not exact?
Months have 28–31 days. Average-month factors are estimates for ballpark planning only.
Can I convert decimal hours to hours and minutes?
Yes—convert the decimal hour value into minutes (and seconds if needed) using the table, then read off whole units.
Does this handle time of day like 3:45 PM?
No. It converts lengths of time, not clock readings or AM/PM formats.

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