Time Unit Converter
Seconds, minutes, hours, days, weeks, months and years — with the month/year caveat explained.
1 h = 60 min
All units
| millisecond (ms) | 3600000 |
|---|---|
| second (s) | 3600 |
| minute (min) | 60 |
| hour (h) | 1 |
| day (d) | 0.0416667 |
| week (wk) | 0.00595238 |
| month (average) (mo) | 0.00136895 |
| year (365.2425 d) (yr) | 0.000114079 |
Common conversions
Formula: 1 h = 60 min
This tool runs entirely in your browser. Your data never leaves your device — it is not uploaded to any server.
How to use
- 1Type the amount you want to convert.
- 2Pick the unit you are converting from and the unit you are converting to.
- 3The result updates as you type — check the table below for every unit at once, or copy the result.
Time Unit Converter
Convert durations between time units. Because calendar months and years vary in length, this tool uses the conventional averages (30.44 days per month, 365.2425 days per year) and says so — no silent rounding.
Useful for project estimates, subscription pricing comparisons, scientific timing and countdowns.
It supports 8 units — millisecond, second, minute, hour, day, week and more. Everything is calculated in your browser, works offline, and your data never touches a server.
Frequently asked questions
Why is a month 30.44 days here?
A calendar month ranges from 28 to 31 days, so duration math uses the average over the Gregorian cycle: 30.4369 days. For exact calendar date arithmetic, use the Date Calculator instead.
Is this converter free?
Yes — it runs entirely in your browser. There are no limits, no ads on results and no sign-up.
How accurate are the conversions?
Conversion factors follow international standard definitions (SI and NIST). Results are shown with up to 8 significant digits.
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Embed this tool
Put this tool on your own site with one line — it runs entirely in the visitor's browser.
<iframe src="https://zoyku.com/en/tools/time-converter?embed=1" width="100%" height="640" style="border:0;border-radius:16px" title="Zoyku — time-converter" loading="lazy"></iframe>