Time Conversion - Convert Seconds, Minutes, Hours, and More
Time Converter
Convert time measurements between different units quickly and accurately
Convert Time
Popular Time Conversions
Quickly convert between the most commonly used time units.
Understanding Time Measurements
Time conversions are fundamental in science, technology, and daily life. Understanding different time units and their relationships is essential for scheduling, scientific calculations, and international coordination.
Common Time Units
Basic Units
- Seconds (s) - SI base unit
- Minutes (min) - 60 seconds
- Hours (hr) - 60 minutes
- Days (d) - 24 hours
Precise Units
- Milliseconds (ms) - 1/1,000 second
- Microseconds (μs) - 1/1,000,000 second
- Nanoseconds (ns) - 1/1,000,000,000 second
Common Applications
| Field | Typical Units | Precision Level |
|---|---|---|
| Daily Life | seconds, minutes, hours | Second precision |
| Computing | nanoseconds, microseconds | Nanosecond precision |
| Scientific | seconds, years | Variable precision |
| Sports | milliseconds, seconds | Millisecond precision |
| Astronomy | years, centuries | Day precision |
Conversion Tips
- 1 minute = 60 seconds exactly
- 1 hour = 3,600 seconds exactly
- 1 day = 86,400 seconds exactly
- 1 year ≈ 31.56 million seconds (accounting for leap years)
Time Conversions
| Conversion | Formula | Quick Answer |
|---|---|---|
| Minutes to Seconds | minutes × 60 | Multiply by 60 |
| Hours to Minutes | hours × 60 | Multiply by 60 |
| Days to Hours | days × 24 | Multiply by 24 |
| Weeks to Days | weeks × 7 | Multiply by 7 |
| Years to Days | years × 365.2425 | Multiply by 365.2425 |
| Seconds to Milliseconds | seconds × 1,000 | Multiply by 1,000 |
| Milliseconds to Microseconds | ms × 1,000 | Multiply by 1,000 |
| Microseconds to Nanoseconds | μs × 1,000 | Multiply by 1,000 |
| Months to Days | months × 30.44 | Multiply by 30.44 |
| Decades to Years | decades × 10 | Multiply by 10 |
Our time conversion tool provides accurate conversions between all time units, from nanoseconds to centuries. Whether you're working with computer timestamps, scientific data, or everyday scheduling, our converter ensures precise time calculations for any application.
Time Conversion Questions
Everything you need to know about time measurements and conversions
Why are there different definitions of time units like months and years?
Time units like months and years vary because they're based on astronomical cycles that don't divide evenly. A month ranges from 28-31 days, and a year is 365.2425 days (accounting for leap years). Our converter uses average values: 30.44 days per month and 365.2425 days per year.
How precise are very small time unit conversions?
Conversions between nanoseconds, microseconds, and milliseconds are mathematically exact since they're decimal-based. However, real-world timing precision depends on your measurement equipment and system capabilities. Most computer systems can measure to microsecond precision.
What's the difference between sidereal and solar time?
Solar time is based on the Sun's position (24 hours per day), while sidereal time is based on Earth's rotation relative to distant stars (23 hours, 56 minutes, 4 seconds). Our converter uses solar time, which is the civil time standard used in daily life.
How do leap years affect time calculations?
Leap years add an extra day every 4 years (with exceptions for century years). Our year conversion uses the Gregorian calendar average of 365.2425 days, which accounts for the leap year cycle over long periods. For short-term calculations, this difference is minimal.
Can I convert between atomic time and regular time?
Atomic time (like TAI) and civil time (UTC) have small differences due to leap seconds added to account for Earth's rotation irregularities. For most practical purposes, the difference is negligible (less than a minute), and our converter uses standard civil time.
How accurate are historical time conversions?
For recent history (post-1582 Gregorian calendar), conversions are highly accurate. For ancient dates, calendar systems varied by culture and region. Our converter assumes the proleptic Gregorian calendar for consistency, but historical dates may need specialized conversion tools.
Have more questions? Contact us!