Time Converter
Convert seconds, minutes, hours, days, weeks, months and years instantly.
1 Second = 1000 Millisecond
1 Second in other units
| Millisecond (ms) | 1000 |
| Microsecond (µs) | 1000000 |
| Nanosecond (ns) | 1000000000 |
| Minute (min) | 0.01666666667 |
| Hour (h) | 0.0002777777778 |
| Day (d) | 0.00001157407407 |
| Week (wk) | 0.000001653439153 |
| Month (avg) (mo) | 3.802649e-7 |
| Year (avg) (yr) | 3.168874e-8 |
| Decade | 3.168874e-9 |
| Century | 3.168874e-10 |
How to use the Time Converter
- Choose the time unit you are converting from.
- Enter the amount of time.
- Choose the unit you want the result in.
- Read the converted value and the table of all other units.
Examples
| Input | Output | Notes |
|---|---|---|
1 hour | 3600 seconds | = 60 minutes |
1 day | 1440 minutes | = 24 hours = 86,400 seconds |
1 week | 168 hours | = 7 days |
1 year (avg) | 365.2425 days | Gregorian mean year |
Fixed vs average time units
Seconds, minutes, hours, days and weeks have fixed lengths. Months and years vary, so this converter uses their average Gregorian values (month = 30.436875 days, year = 365.2425 days) — expect small rounding differences versus a specific calendar date.
Time unit reference
| Unit | In seconds |
|---|---|
| Minute | 60 |
| Hour | 3,600 |
| Day | 86,400 |
| Week | 604,800 |
| Year (avg) | 31,556,952 |
Related tools
To work out an exact age or a duration between two calendar dates, use the Age Calculator.
Frequently asked questions
How many seconds are in a day?
There are 86,400 seconds in a day (24 hours × 60 minutes × 60 seconds). A week has 604,800 seconds.
How many days are in a month?
Calendar months vary from 28 to 31 days. For conversions this tool uses the average Gregorian month of 30.436875 days (about 2,629,746 seconds).
How long is a year in this converter?
It uses the mean Gregorian year of 365.2425 days (31,556,952 seconds), which accounts for leap years. An exact calendar year is 365 or 366 days.
How do I convert seconds into hours, minutes and seconds?
Divide the total seconds by 3,600 for whole hours, take the remainder and divide by 60 for minutes, and the final remainder is seconds. For example, 4,000 s = 1 h 6 m 40 s.
Why doesn't weeks convert cleanly to months?
A month is not a whole number of weeks. Using average lengths, one month ≈ 4.348 weeks and one year ≈ 52.18 weeks, so results are approximate for month and year units.