Easily convert time units with the Time Unit Converter. Switch between seconds, minutes, hours, days, weeks, months, and years for accurate and quick calculations in any application!
Time Unit Converter
Convert a time value between seconds, minutes, hours, days, and weeks.
* Enter your time value and select the units.
Step 1: Enter Conversion Data
Popular Time Unit Conversions
- Minutes to Hours
- Hours to Minutes
- Hours to Days
- Days to Hours
- Seconds to Days
- Days to Seconds
- Minutes to Days
- Days to Months
- Months to Days
- Days to Years
- Years to Days
- Minutes to Seconds
- Seconds to Minutes
- Milliseconds to Seconds
- Seconds to Milliseconds
Complete List of Time Units for Conversion
- Second [s]
- Millisecond [ms]
- Minute [min]
- Hour [h]
- Day [d]
- Week
- Month
- Year [y]
- Decade
- Century
- Millennium
- Microsecond [µs]
- Nanosecond [ns]
- Picosecond [ps]
- Femtosecond [fs]
- Attosecond [as]
- Shake
- Month (synodic)
- Year (Julian)
- Year (leap)
- Year (tropical)
- Year (sidereal)
- Day (sidereal)
- Hour (sidereal)
- Minute (sidereal)
- Second (sidereal)
- Fortnight
- Septennial
- Octennial
- Novennial
- Quindecennial
- Quinquennial
- Planck Time
Units, Symbols, and Conversion Values
Units, Symbols, and Conversion Values Used in Time Conversion to Common Units
Common Unit: Second [s]
Convert from Unit | Symbol | Convert to (s) | Multiply by (Conversion Factor) |
---|---|---|---|
Millisecond | ms | Second | 0.001 |
Minute | min | Second | 60 |
Hour | h | Second | 3600 |
Day | d | Second | 86400 |
Week | week | Second | 604800 |
Month | month | Second | 2628000 |
Year | y | Second | 31557600 |
Decade | decade | Second | 315576000 |
Century | century | Second | 3155760000 |
Millennium | millennium | Second | 31557600000 |
Microsecond | µs | Second | 1.0E-6 |
Nanosecond | ns | Second | 1.0E-9 |
Picosecond | ps | Second | 1.0E-12 |
Femtosecond | fs | Second | 1.0E-15 |
Attosecond | as | Second | 1.0E-18 |
Shake | shake | Second | 1.0E-8 |
Month (synodic) | month (synodic) | Second | 2551443.84 |
Year (Julian) | year (Julian) | Second | 31557600 |
Year (leap) | year (leap) | Second | 31622400 |
Year (tropical) | year (tropical) | Second | 31556930 |
Year (sidereal) | year (sidereal) | Second | 31558149.54 |
Day (sidereal) | day (sidereal) | Second | 86164.09 |
Hour (sidereal) | h (sidereal) | Second | 3590.1704166667 |
Minute (sidereal) | min (sidereal) | Second | 59.8361736111 |
Second (sidereal) | second (sidereal) | Second | 0.9972695602 |
Fortnight | fortnight | Second | 1209600 |
Septennial | septennial | Second | 220752000 |
Octennial | octennial | Second | 252288000 |
Novennial | novennial | Second | 283824000 |
Quindecennial | quindecennial | Second | 473040000 |
Quinquennial | quinquennial | Second | 157680000 |
Planck Time | Planck time | Second | 5.39056E-44 |
Units, Symbols, and Conversion Values Used in Time Conversion from Common Units
Common Unit: Second [s]
Convert to Unit | Symbol | Convert from (s) | Multiply by (Conversion Factor) |
---|---|---|---|
Millisecond | ms | Second | 1000 |
Minute | min | Second | 0.0166666667 |
Hour | h | Second | 0.0002777778 |
Day | d | Second | 0.0000115741 |
Week | week | Second | 1.65343915E-6 |
Month | month | Second | 3.80257025E-7 |
Year | y | Second | 3.1709792E-8 |
Decade | decade | Second | 3.1709792E-10 |
Century | century | Second | 3.1709792E-11 |
Millennium | millennium | Second | 3.1709792E-13 |
Microsecond | µs | Second | 1000000 |
Nanosecond | ns | Second | 1000000000 |
Picosecond | ps | Second | 1000000000000 |
Femtosecond | fs | Second | 1000000000000000 |
Attosecond | as | Second | 1000000000000000000 |
Shake | shake | Second | 1.0E+8 |
Month (synodic) | month (synodic) | Second | 3.91357417E-7 |
Year (Julian) | year (Julian) | Second | 3.1709792E-8 |
Year (leap) | year (leap) | Second | 3.16438356E-8 |
Year (tropical) | year (tropical) | Second | 3.1699034E-8 |
Year (sidereal) | year (sidereal) | Second | 3.1701654E-8 |
Day (sidereal) | day (sidereal) | Second | 1.1574074E-5 |
Hour (sidereal) | h (sidereal) | Second | 0.0002777778 |
Minute (sidereal) | min (sidereal) | Second | 0.0166666667 |
Second (sidereal) | second (sidereal) | Second | 1.003),2695602 |
Fortnight | fortnight | Second | 8.2671957E-7 |
Septennial | septennial | Second | 4.5267494E-9 |
Octennial | octennial | Second | 3.968253968E-10 |
Novennial | novennial | Second | 3.5271323E-11 |
Quindecennial | quindecennial | Second | 2.1179159E-10 |
Quinquennial | quinquennial | Second | 6.3404355E-9 |
Planck Time | Planck time | Second | 1.8507425E+43 |
Conversion Examples
Example 1: Converting Minutes to Hours
Given: 90 minutes
Objective: Convert to hours [h]
Steps:
- Identify the Starting Unit: Minutes (min)
- Find the Conversion Factor:
- 1 min = 60 s
- 1 h = 3600 s
1 min = 60 s
1 h = 3600 s
- Convert Minutes to Seconds:
90 min × 60 s/min = 5400 s
- Convert Seconds to Hours:
5400 s ÷ 3600 s/h = 1.5 h
Result: 90 min = 1.5 h
Example 2: Converting Days to Seconds
Given: 2 days
Objective: Convert to seconds [s]
Steps:
- Identify the Starting Unit: Days (d)
- Find the Conversion Factor:
- 1 d = 86400 s
1 d = 86400 s
- Multiply the Starting Value by the Conversion Factor:
2 d × 86400 s/d = 172800 s
Result: 2 d = 172800 s
Practical Tips for Unit Conversion
- Use Precise Conversion Factors: Ensure accuracy by using exact conversion factors, especially in scientific and engineering calculations.
- Maintain Consistent Units: When performing calculations involving multiple units, ensure all units are appropriately converted to maintain consistency.
- Understand the Relationship Between Units: Familiarize yourself with how different time units relate to each other, particularly between SI and non-SI systems.
- Reference Reliable Sources: Always verify conversion factors using trusted references or official standards.
- Utilize Technology: Leverage calculators or software tools to handle complex conversions and minimize manual errors.
- Practice with Examples: Reinforce your understanding by working through various conversion scenarios.
Common Pitfalls and How to Avoid Them
- Incorrect Conversion Factors:
- Solution: Always cross-check conversion factors with reliable sources before performing calculations.
- Misalignment of Units:
- Solution: Ensure that numerator and denominator units are consistently converted to maintain dimensional integrity.
- Ignoring Unit Prefixes:
- Solution: Pay attention to unit prefixes (e.g., kilo-, centi-, milli-) as they significantly affect conversion factors.
- Rounding Errors:
- Solution: Carry sufficient decimal places during intermediate steps and round only the final result as needed.
- Confusing Similar Units:
- Solution: Clearly distinguish between units such as s, ms, min, h, d, etc., to avoid mixing them up.
- Assuming Non-Standard Units are Equivalent:
- Solution: Verify the equivalence of less common units before performing conversions.