⏱️ Time Converter
Convert between seconds, minutes, hours, days, weeks, months and years. Month and year conversions use calendar averages (1 year = 365.2425 days in the Gregorian calendar).
1 ns = 0.001 µs
1 nanoseconds = 0.001 microseconds
1 × 0.001 = 0.001
1 ns equals 0.001 µs, so multiplying by 0.001 converts the value. The result describes the exact same quantity, only the measuring stick changes.
Popular time conversions
- Minutes to Hours (min → h)
- Hours to Minutes (h → min)
- Hours to Days (h → d)
- Days to Hours (d → h)
- Seconds to Minutes (s → min)
- Minutes to Seconds (min → s)
- Days to Weeks (d → wk)
- Weeks to Days (wk → d)
- Milliseconds to Seconds (ms → s)
- Seconds to Milliseconds (s → ms)
- Days to Months (d → mo)
- Months to Days (mo → d)
- Days to Years (d → yr)
All time units
| Unit | Symbol | Definition |
|---|---|---|
| Nanosecond | ns | A nanosecond (ns) is one billionth of a second. CPU clock cycles and memory latencies are measured in nanoseconds. |
| Microsecond | µs | A microsecond (µs) is one millionth of a second, used for network latencies and high-speed electronics timing. |
| Millisecond | ms | A millisecond (ms) is one thousandth of a second. Web response times, video frame timing and reaction times are measured in milliseconds. |
| Second | s | The second (s) is the SI base unit of time, defined by the radiation frequency of the cesium-133 atom. All other time units derive from it. |
| Minute | min | A minute (min) is 60 seconds. The 60-based division of hours dates back to Babylonian mathematics. |
| Hour | h | An hour (h) is 60 minutes or 3,600 seconds, one 24th of a day. Work time, travel time and billing commonly use hours. |
| Day | d | A day (d) is 24 hours or 86,400 seconds, one rotation of the Earth. Calendar calculations and durations build on days. |
| Week | wk | A week (wk) is 7 days or 168 hours. Schedules, pregnancy tracking and project planning commonly count in weeks. |
| Month (average) | mo | An average Gregorian month is 30.44 days (2,629,746 seconds), one twelfth of the average year. Individual calendar months range from 28 to 31 days. |
| Year (Gregorian) | yr | A Gregorian calendar year averages 365.2425 days (31,556,952 seconds), accounting for leap years. Common years have 365 days; leap years 366. |
Frequently asked questions
How do I convert time units?
Choose your two units in the converter above and type a value, the result updates instantly, entirely in your browser. All 10 time units on this page are interchangeable, so you can convert in either direction.
Which time units can I convert here?
This converter supports 10 time units: Nanosecond (ns), Microsecond (µs), Millisecond (ms), Second (s) and 6 more. Pick any two to convert between them.
What is the most common time conversion?
One of the most-used time conversions is Minutes to Hours (min → h). Every time pair we support is linked below, each with its own formula and table.
Is this Time Converter free and private?
Yes. It is free with no sign-up, uses the exact internationally defined conversion factors, and computes every result locally in your browser, nothing you type is uploaded, and the page keeps working offline.