Time converter
Time Converter – 10 Units, Exact Factors
1 hour = 60 minutes
Default is 5 significant figures. “Search units as” decides what words like gallon, pint or cup mean when you type them. Shortcuts: Alt+S swap · Alt+C copy · Alt+L link · / search
- 1 h = 60 min
- 5 h = 300 min
- 10 h = 600 min
- 25 h = 1500 min
- Secondss
- Millisecondsms
- Microsecondsµs
- Nanosecondsns
- Minutesmin
- Hoursh
- Daysd
- Weekswk
- Monthsmo
- Yearsyr
- Seconds3,600s
- Milliseconds3,600,000ms
- Microseconds3,600,000,000µs
- Nanoseconds3,600,000,000,000ns
- Minutes60min
- Hours1h
- Days0.041667d
- Weeks0.0059524wk
- Months0.001369mo
- Years0.00011408yr
About time conversions
Months and years use average Gregorian lengths (30.436875 and 365.2425 days); calendar months and leap years vary.
Common time conversions
Time units explained
| Unit | System | Definition and notes |
|---|---|---|
| Second (s) | SI (metric) | Base unitThe SI base unit of time, defined by how fast caesium-133 atoms vibrate. |
| Millisecond (ms) | SI (metric) | 1 ms = 0.001 s (exact) |
| Microsecond (µs) | SI (metric) | 1 µs = 0.000001 s (exact) |
| Nanosecond (ns) | SI (metric) | 1 ns = 1 × 10⁻⁹ s (exact) |
| Minute (min) | SI (metric) | 1 min = 60 s (exact) |
| Hour (h) | SI (metric) | 1 h = 3,600 s (exact) |
| Day (d) | SI (metric) | 1 d = 86,400 s (exact) |
| Week (wk) | other | 1 wk = 604,800 s (exact) |
| Month (average) (mo) | other | 1 mo = 2,629,746 s (exact)An average calendar month: 30.436875 days. Real months run from 28 to 31 days. |
| Year (average) (yr) | other | 1 yr = 31,556,952 s (exact)An average calendar (Gregorian) year: 365.2425 days, counting leap years. |
Hours to minutes conversion table
| Hours (h) | Minutes (min) |
|---|---|
| 0.1 h | 6 min |
| 0.5 h | 30 min |
| 1 h | 60 min |
| 2 h | 120 min |
| 3 h | 180 min |
| 4 h | 240 min |
| 5 h | 300 min |
| 6 h | 360 min |
| 7 h | 420 min |
| 8 h | 480 min |
| 9 h | 540 min |
| 10 h | 600 min |
| 15 h | 900 min |
| 20 h | 1,200 min |
| 25 h | 1,500 min |
| 30 h | 1,800 min |
| 40 h | 2,400 min |
| 50 h | 3,000 min |
| 75 h | 4,500 min |
| 100 h | 6,000 min |
| 250 h | 15,000 min |
| 500 h | 30,000 min |
| 1,000 h | 60,000 min |
Frequently asked questions
Which time units can I convert?
seconds (s), milliseconds (ms), microseconds (µs), nanoseconds (ns), minutes (min), hours (h), days (d), weeks (wk), months (mo), years (yr).
How accurate are the results?
Every unit is stored with its exact defining factor (NIST SP 811, NIST Handbook 44 or the BIPM SI Brochure). Calculations use double-precision arithmetic and are rounded only for display, to 5 significant figures by default (trailing zeros dropped, so 1 km shows as 1000 m). You can choose Auto (up to 10 digits), fixed decimals or more significant figures, or switch to scientific or engineering notation.