Time Converter
Convert any time unit quickly and accurately. Whether you need to convert seconds to hours, days to years, or microseconds to Planck time, our tool gives you instant results, clear explanations, and helpful tables – all in one place.
How to Use the Time Converter
- Enter the value you want to convert.
- Select the original unit (From) and the target unit (To).
- See the result instantly, along with a human-readable explanation.
This tool supports all major time units: seconds, milliseconds, minutes, hours, days, weeks, months, years, and more.
Popular Time Conversions
| From | To | Formula |
|---|---|---|
| Seconds (s) | Minutes (min) | s ÷ 60 |
| Minutes (min) | Seconds (s) | min × 60 |
| Hours (h) | Minutes (min) | h × 60 |
| Days (d) | Hours (h) | d × 24 |
| Weeks | Days (d) | week × 7 |
| Years (y) | Days (d) | y × 365.25 |
| Milliseconds (ms) | Seconds (s) | ms ÷ 1000 |
| Microseconds (μs) | Milliseconds (ms) | μs ÷ 1000 |
Time Units Explained
What is a Second?
The second (s) is the SI base unit of time. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom.
What is a Minute?
A minute (min) is equal to 60 seconds.
What is an Hour?
An hour (h) is equal to 60 minutes or 3,600 seconds.
What is a Day?
A day (d) is equal to 24 hours or 86,400 seconds.
What is a Year?
A year (y) is commonly taken as 365.25 days, accounting for leap years.
What is Planck Time?
Planck time is the time it takes for light to travel one Planck length in a vacuum, approximately 5.39 × 10⁻⁴⁴ seconds.
FAQ – Time Conversion
- How do I convert seconds to minutes?
- Divide the number of seconds by 60 to get minutes.
- How many seconds are in an hour?
- There are 3,600 seconds in one hour.
- What is a leap year?
- A leap year is a year with 366 days, occurring every four years to keep the calendar year synchronized with the astronomical year.
- Can I use this converter on my phone?
- Yes! The time converter is fully mobile-friendly and works on any device.
- Is this tool free?
- Absolutely. You can use this converter as much as you like – it's completely free.
- Does this converter support all time units?
- Yes, it supports all major time units.