Time Converter Guide: All Time Units Explained
From nanoseconds in computing to years in finance, time units span an enormous range. Here's a complete conversion reference.
Time Unit Reference Table
| Unit | In Seconds | In Minutes |
|---|---|---|
| 1 second | 1 | 0.0167 |
| 1 minute | 60 | 1 |
| 1 hour | 3,600 | 60 |
| 1 day | 86,400 | 1,440 |
| 1 week | 604,800 | 10,080 |
| 1 month (avg) | 2,629,746 | 43,829 |
| 1 year (365 days) | 31,536,000 | 525,600 |
Frequently Asked Questions
How many seconds in a day?
1 day = 24 hours × 60 minutes × 60 seconds = 86,400 seconds. 1 week = 604,800 seconds. 1 year = 365 × 86,400 = 31,536,000 seconds (31,557,600 in a leap year).
How many weeks in a year?
52 weeks and 1 day (52 weeks and 2 days in a leap year). Since 52 × 7 = 364, every year has 1 extra day. This is why your birthday falls on a different day of the week each year.
What is a lunar month?
A lunar (synodic) month = 29.53 days — the time between two full moons. 12 lunar months = 354.37 days, which is why a lunar calendar year is ~11 days shorter than a solar year. Islamic calendar is purely lunar; Hindu calendar lunisolar.
How do I convert decimal hours to hours and minutes?
Multiply the decimal part by 60 to get minutes. For example, 2.75 hours = 2 hours and (0.75 × 60) = 2 hours 45 minutes. Similarly, 1.333 hours = 1 hour 20 minutes.
What is a Gregorian year vs a Julian year?
A Julian year = exactly 365.25 days (365 + 1 leap day every 4 years). A Gregorian year averages 365.2425 days (skips leap year on century years unless divisible by 400). The Gregorian calendar, used today, is more accurate — the difference is just 26 seconds per year.
Related Calculators
Convert Any Time Unit
Convert between seconds, minutes, hours, days, weeks, months, and years instantly.
Open Time Converter