Time Converter
Time converter fast with a simple formula, quick examples, and easy tips for school, science, project planning, and everyday scheduling.
0
Convert Any Unit of Time
Our converter supports a wide range of time units used across everyday life, science, and engineering, including:
- Common units: seconds (s), minutes (min), hours (hr), days (d), weeks (wk)
- Calendar units: months, years, decades, centuries, millennia
- Scientific units: milliseconds (ms), microseconds (µs), nanoseconds (ns), picoseconds (ps)
Whether you need to convert hours to minutes for a work schedule, days to weeks for a project timeline, or milliseconds to seconds for a coding task, this tool has you covered.
Why Use a Time Converter?
Time is measured differently depending on the context. A software developer tracks response times in milliseconds, a project manager plans in weeks and months, and a scientist may work in nanoseconds. Switching between these units manually is easy to get wrong.
A reliable time converter helps you
- Plan projects accurately by converting deadlines between days, weeks, and months without errors.
- Work with code and data — convert milliseconds, microseconds, or nanoseconds for programming, databases, and APIs.
- Study smarter by instantly checking physics or chemistry problems that involve unit conversions.
- Schedule internationally — quickly calculate time spans across different unit formats used in various industries and regions.
How Accurate Is This Converter?
Our converter uses precise, universally accepted time conversion factors. For example:
- 1 minute = 60 seconds (exact)
- 1 hour = 3,600 seconds (exact)
- 1 day = 86,400 seconds (exact)
- 1 year = 365.25 days (average, accounting for leap years)
Results are displayed to several decimal places to ensure accuracy for both everyday use and scientific applications.
FAQs
Q: How do I convert hours to minutes?
A: Multiply the hour value by 60. For example, 3 hours × 60 = 180 minutes. Our converter does this automatically — just enter your value, select “hours” as the input unit, and “minutes” as the output.
Q: How many seconds are in a day?
A: There are exactly 86,400 seconds in one day — calculated as 24 hours × 60 minutes × 60 seconds.
Q: How do I convert days to weeks?
A: Divide the number of days by 7. For example, 28 days ÷ 7 = 4 weeks. You can also use our converter above for instant results.
Q: How many days are in a year?
A: A standard calendar year has 365 days. A leap year has 366 days. For scientific calculations, an average year is taken as 365.25 days to account for the leap year cycle.
Q: What is the difference between a millisecond, microsecond, and nanosecond?
A: These are all fractions of a second used in science and technology. A millisecond (ms) is one-thousandth of a second (1/1,000). A microsecond (µs) is one-millionth of a second (1/1,000,000). A nanosecond (ns) is one-billionth of a second (1/1,000,000,000). They are commonly used in computing, networking, and physics.
Q: What units does the time converter support?
A: Our tool currently supports picoseconds, nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, centuries, and millennia. More units may be added based on user feedback.
Q: Is this time converter free to use?
A: Yes — completely free, with no account required. Use it as many times as you like, on any device.
Q: Can I use this tool on my phone?
A: Absolutely. Our time converter is fully responsive and works on smartphones, tablets, and desktop computers.
Q: How many months are in a decade?
A: There are exactly 120 months in a decade (10 years × 12 months). Similarly, a century has 1,200 months, and a millennium has 12,000 months.
Q: Why do converted results for months and years show decimals?
A: Months and years are not perfectly uniform — months vary between 28 and 31 days, and years vary due to leap years. Our converter uses standard average values (1 month ≈ 30.4375 days, 1 year = 365.25 days) to ensure consistent and accurate results across all calculations.
Time Conversion Units In Days
| Unit | Value in Seconds | Conversions |
|---|---|---|
| Minute | 1 minute = 60 seconds | minutes to seconds, seconds to minutes |
| Hour | 1 hour = 3600 seconds | hours to seconds, seconds to hours |
| Day | 1 day = 86400 seconds | days to seconds, seconds to days |
| Week | 1 week = 604800 seconds | weeks to seconds, seconds to weeks |
| Month | 1 month = 2628000 seconds | months to seconds, seconds to months |
| Year | 1 year = 31536000 seconds | years to seconds, seconds to years |
| Decade | 1 decade = 315360000 seconds | decades to seconds, seconds to decades |
| Century | 1 century = 3153600000 seconds | centuries to seconds, seconds to centuries |
Time Conversion Units In Seconds
| Unit | Value in Days | Conversions |
|---|---|---|
| Second | 1 second = 0.0000115741 days | seconds to days, days to seconds |
| Minute | 1 minute = 0.0006944444 days | minutes to days, days to minutes |
| Hour | 1 hour = 0.0416666667 days | hours to days, days to hours |
| Week | 1 week = 7 days | weeks to days, days to weeks |
| Month | 1 month = 30.4167 days | months to days, days to months |
| Year | 1 year = 365 days | years to days, days to years |
| Decade | 1 decade = 3650 days | decades to days, days to decades |
| Century | 1 century = 36500 days | centuries to days, days to centuries |