§ 01 / TOOL
Time Converter.
STATUS READYUNITS 10BASE SECOND
> CONVERT
// FROM
=
// TO
60
RESULT.
hr → min
60 min.
1 hr = 60 min
§ 02 / ABOUT
How time conversion works.
Pick a value, pick the unit you have, pick the unit you want. The math is a single multiply: every supported unit knows how many seconds it contains, so converting from A to B is (value × secondsPerA) ÷ secondsPerB.
// THE EXACT VALUES
- Millisecond = 0.001 seconds
- Minute = 60 seconds
- Hour = 3,600 seconds
- Day = 86,400 seconds (24 × 60 × 60)
- Week = 604,800 seconds (7 days)
- Month (average) = 2,629,746 seconds (30.4375 days, the Gregorian average)
- Year (average) = 31,556,952 seconds (365.2425 days)
// WHEN TO USE THE AGE CALCULATOR INSTEAD
For exact spans between two specific dates — “how many days from March 14 to November 2” — use Age Calculator instead. This tool is for unit conversion, not date math; its month/year values are averages.
§ 03 / FAQ
Time conversion questions.
How long is a "month" in this tool?+
The average month — 30.44 days. Real months range 28-31 so any single conversion is approximate. For exact spans, use the Age Calculator with two dates instead.
How long is a "year"?+
365.2425 days, which is the Gregorian calendar average accounting for leap years. A common year is 365.0 days; a leap year is 366. The .2425 keeps our calendar aligned with the solar year over centuries.
How many seconds in a day? In a year?+
86,400 seconds in a day. 31,556,952 seconds in an average year — easy to remember as "about pi × 10^7 seconds in a year" (3.156 × 10^7).
Why no fortnights, jiffies, or shakes?+
Niche. We can add them. Fortnight = 2 weeks = 1,209,600 seconds. Jiffy = 1/60 second (UK) or 10ms (computing). Shake = 10 nanoseconds (nuclear physics). Open an issue if you actually need one.
§ 04 / TOOLS
Related calculators.
§ 05 / READING