Free Online Time Converter
Convert between seconds, minutes, hours, days, weeks, months, and years with this free online time converter. Use the calculator to quickly convert time units online, including milliseconds, microseconds, and other common duration conversions with accurate results directly in your browser.
Whether you need a simple time conversion calculator for everyday use or precise unit conversions for technical work, this tool makes converting time values fast and easy to understand.
Convert Time Units Instantly
This online time converter supports a wide range of standard and scientific time units. You can easily convert small units like milliseconds and microseconds or larger durations such as weeks, months, and years.
Popular conversions include:
- Seconds to minutes
- Minutes to hours
- Hours to days
- Days to weeks
- Weeks to months
- Months to years
- Milliseconds to minutes
- Milliseconds to hours
- Years to seconds
Common Time Conversion Examples
2 hours to minutes
2 × 60 = 120
So:
2 hours = 120 minutes
90 minutes to hours
90 ÷ 60 = 1.5
So:
90 minutes = 1.5 hours
1 day to seconds
24 × 60 × 60 = 86,400
So:
1 day = 86,400 seconds
60,000 milliseconds to minutes
60,000 ÷ 60,000 = 1
So:
60,000 milliseconds = 1 minute
3,600,000 milliseconds to hours
3,600,000 ÷ 3,600,000 = 1
So:
3,600,000 milliseconds = 1 hour
1 year to seconds (average)
365.25 × 86,400 ≈ 31,557,600
So:
1 year ≈ 31,557,600 seconds
These examples are useful for schedules, software timing, analytics, and duration calculations.
Why Use This Time Unit Converter?
Converting time units manually can be confusing, especially when working with very large numbers or technical units like milliseconds and microseconds.
This online time converter helps you:
- Convert time values quickly
- Avoid manual calculation mistakes
- Understand large durations more easily
- Work with technical timing data
- Compare different time units instantly
It is useful for students, developers, engineers, researchers, project managers, and everyday calculations.
Common Use Cases
Time conversion calculators are commonly used for timesheets and work-hour calculations, sports and stopwatch timing, software and API response-time tracking, video and audio duration calculations, scientific and engineering projects, data analysis and uptime reports, and homework and educational exercises.
Time Conversion Calculator and Supported Units
This time conversion calculator uses standard conversion factors commonly used in education, engineering, science, analytics, and software applications.
All calculations update instantly as you enter a value.
Supported time units and reference factors:
| Nanoseconds (ns) |
| Microseconds (µs) |
| Milliseconds (ms) |
| Seconds (s) |
| Minutes (min) |
| Hours (hr) |
| Days |
| Weeks |
| Months |
| Years |
| 1 minute = 60 seconds |
| 1 hour = 60 minutes |
| 1 day = 24 hours |
| 1 week = 7 days |
| 1 year ≈ 365.25 days |
Popular Time Unit Conversions
FAQs
How do I convert hours to minutes?
Multiply the number of hours by 60. Example: 2 hours = 120 minutes.
Which time units are supported?
This converter supports everything from nanoseconds and milliseconds to days, weeks, months, and years.
Can I convert milliseconds and microseconds?
Yes. The calculator supports small technical time units including milliseconds (ms), microseconds (µs), and nanoseconds (ns).
Are leap seconds included?
Most everyday conversions use fixed standard values such as 60 seconds = 1 minute and 24 hours = 1 day. Leap seconds are not typically included in standard time conversion calculations.
Is this online time converter free?
Yes. You can use this free time conversion calculator directly in your browser without creating an account.
Are the calculations accurate?
Yes. The converter uses standard time conversion formulas commonly used in science, engineering, education, and software systems.