Time Converter
Convert time between seconds, minutes, hours, days, weeks, months, and years. Used for scheduling, project planning, scientific calculations, and payroll. See also our Hours Calculator and Days Calculator.
Value:
Popular Time Converters:
What is a Time Converter?
A time converter is a tool that converts between different units of time such as seconds, minutes, hours, days, weeks, months, and years. It is useful for scheduling, project planning, scientific calculations, and any situation where you need to express time durations in different units.
How to Convert Time Units
Select the time unit you want to convert from and the unit you want to convert to using the dropdown menus. Enter your value in the input field and the converter will instantly calculate the equivalent time duration. Use the popular conversion links below for common conversions like minutes to hours.
Time Conversion Formulas
History of Time Measurement
The Egyptians divided the day into 24 hours around 1500 BCE, and the Babylonians introduced the base-60 system giving us 60 minutes per hour and 60 seconds per minute. In 1967, the SI second was redefined based on cesium-133 atomic vibrations, providing precision to within one second over millions of years.
About This Time Converter
This time converter supports 23 different units including seconds, minutes, hours, days, weeks, months, years, decades, centuries, millennia, milliseconds, microseconds, nanoseconds, picoseconds, femtoseconds, attoseconds, fortnight, and Planck time.
Frequently Asked Questions
How many seconds are in a day?
There are exactly 86,400 seconds in one day (24 hours × 60 minutes × 60 seconds).
How many hours are in a year?
A standard year has 8,760 hours (365 days × 24 hours). A leap year has 8,784 hours (366 days × 24 hours).
How many weeks are in a year?
There are approximately 52.143 weeks in a year (365 days ÷ 7 days per week). This means a year has 52 full weeks plus 1 extra day (or 2 in a leap year).
How many days are in a month?
Months vary from 28 to 31 days. The average month length is approximately 30.4375 days (365.25 days ÷ 12 months).
What is a nanosecond?
A nanosecond is one billionth of a second (10⁻⁹ seconds). Light travels approximately 30 centimeters (about 1 foot) in one nanosecond.
Metric Conversion Factor Tables for Time Converter
| Units to convert | Multiply By The Number | Convert as Unit |
|---|---|---|
| Second (s) | 0.016666667 | Minute (min) |
| Second (s) | 0.000277778 | Hour (h) |
| Second (s) | 1000 | Millisecond (ms) |
| Minute (min) | 60 | Second (s) |
| Minute (min) | 0.016666667 | Hour (h) |
| Hour (h) | 60 | Minute (min) |
| Hour (h) | 3600 | Second (s) |
| Hour (h) | 0.041666667 | Day (d) |
| Day (d) | 24 | Hour (h) |
| Day (d) | 1440 | Minute (min) |
| Day (d) | 86400 | Second (s) |
| Week | 7 | Day (d) |
| Week | 168 | Hour (h) |
| Month (mo) | 30.4375 | Day (d) |
| Year (y) | 365 | Day (d) |
| Year (y) | 12 | Month (mo) |
| Year (y) | 52.1429 | Week |
| Year (y) | 8760 | Hour (h) |
| Decade | 10 | Year (y) |
| Century | 100 | Year (y) |
| Millennium | 1000 | Year (y) |
Timeconverters & it's abbreviations
| Unit | Abbreviation | Unit | Abbreviation | Unit | Abbreviation |
|---|---|---|---|---|---|
| second | s | minute | min | hour | h |
| day | d | week | wk | month | mo |
| year | y yr | decade | dec | century | c |
| millennium | - | millisecond | ms | microsecond | µs |
| nanosecond | ns | picosecond | ps | femtosecond | fs |
| attosecond | as | fortnight | - | Planck time | tP |
Complete list of Time conversion units and its conversion.
- 1 second [s] = 1000 millisecond [ms]
seconds to milliseconds → - 1 second [s] = 0.016666667 minute [min]
seconds to minutes → - 1 second [s] = 0.000277778 hour [h]
seconds to hours →
- 1 minute [min] = 60 second [s]
minutes to seconds → - 1 minute [min] = 0.016666667 hour [h]
minutes to hours → - 1 minute [min] = 0.0006944444 day [d]
minutes to days →
- 1 hour [h] = 0.041666667 day [d]
hours to days → - 1 hour [h] = 0.005952381 week
hours to weeks → - 1 day [d] = 24 hour [h]
days to hours →
- 1 day [d] = 0.0027397260 year [y]
days to years → - 1 week = 7 day [d]
weeks to days → - 1 week = 168 hour [h]
weeks to hours →
- 1 month [mo] = 4.3482143 week
months to weeks → - 1 year [y] = 365 day [d]
years to days → - 1 year [y] = 12 month [mo]
years to months →
- 1 year [y] = 31536000 second [s]
years to seconds → - 1 millisecond [ms] = 0.001 second [s]
milliseconds to seconds → - 1 millisecond [ms] = 1000 microsecond [µs]
milliseconds to microseconds →
- 1 nanosecond [ns] = 1000 picosecond [ps]
nanoseconds to picoseconds → - 1 decade = 10 year [y]
decades to years → - 1 century = 100 year [y]
centuries to years →
- 1 second [s] = 0.0000115741 day [d]
seconds to days → - 1 second [s] = 1000000 microsecond [µs]
seconds to microseconds → - 1 second [s] = 1000000000 nanosecond [ns]
seconds to nanoseconds →
- 1 minute [min] = 60000 millisecond [ms]
minutes to milliseconds → - 1 hour [h] = 60 minute [min]
hours to minutes → - 1 hour [h] = 3600 second [s]
hours to seconds →
- 1 day [d] = 1440 minute [min]
days to minutes → - 1 day [d] = 86400 second [s]
days to seconds → - 1 day [d] = 0.0328767123 month [mo]
days to months →
- 1 week = 10080 minute [min]
weeks to minutes → - 1 month [mo] = 30.4375 day [d]
months to days → - 1 month [mo] = 730.5 hour [h]
months to hours →
- 1 year [y] = 52.1428571 week
years to weeks → - 1 year [y] = 8760 hour [h]
years to hours → - 1 year [y] = 525600 minute [min]
years to minutes →
- 1 microsecond [µs] = 0.001 millisecond [ms]
microseconds to milliseconds → - 1 microsecond [µs] = 1000 nanosecond [ns]
microseconds to nanoseconds → - 1 nanosecond [ns] = 0.001 microsecond [µs]
nanoseconds to microseconds →
- 1 millennium = 1000 year [y]
millennia to years → - 1 fortnight = 14 day [d]
fortnights to days → - 1 fortnight = 2 week
fortnights to weeks →