Time unit converter
Convert time units between seconds, minutes, hours, days, weeks, months, and years.
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Time conversion table
| From | To | Result |
|---|---|---|
| 1 Minute (min) | Seconds (s) | 60 s |
| 1 Hour (h) | Minutes (min) | 60 min |
| 1 Hour (h) | Seconds (s) | 3,600 s |
| 1 Day | Hours (h) | 24 h |
| 1 Day | Seconds (s) | 86,400 s |
| 1 Week | Days | 7 days |
| 1 Week | Hours (h) | 168 h |
| 1 Month (avg) | Days | 30.4375 days |
| 1 Year (avg) | Days | 365.25 days |
| 1 Year (avg) | Hours (h) | 8,766 h |
| 1 Year (avg) | Seconds (s) | 31,557,600 s |
How to convert time units
Time conversions use fixed multiplication factors based on exact definitions (60 seconds per minute, 60 minutes per hour, 24 hours per day, and so on).
Hours to seconds
seconds = hours × 3600
Example: 2.5 h = 2.5 × 3600 = 9,000 s
Days to hours
hours = days × 24
Example: 7 days = 7 × 24 = 168 h
Years to days
days = years × 365.25
Example: 3 years = 3 × 365.25 = 1,095.75 days
Frequently asked questions
How many seconds are in a day?
There are 86,400 seconds in one day (60 seconds × 60 minutes × 24 hours). One week is 604,800 seconds. This value is commonly needed in software development for setting cache TTLs, token expiry times, and rate limits expressed in seconds.
How many seconds are in a year?
One standard year (365 days) contains 31,536,000 seconds. Using the average year of 365.25 days (to account for leap years), the value is 31,557,600 seconds. The 365.25-day average is more accurate for long-range calculations involving multiple years.
How many minutes are in a day?
There are 1,440 minutes in one day (60 minutes × 24 hours). One week contains 10,080 minutes. One year contains approximately 525,960 minutes (365.25 × 1,440).
How do I convert hours to minutes?
Multiply the number of hours by 60. For example, 2.5 hours = 2.5 × 60 = 150 minutes. To convert minutes to hours, divide by 60. For example, 90 minutes = 90 ÷ 60 = 1.5 hours (1 hour 30 minutes).
How many hours are in a week?
There are 168 hours in one week (24 hours × 7 days). A standard working week of 40 hours represents 40/168 = 23.8% of the total hours in a week. A full-time employee works approximately 2,080 hours per year (40 hours × 52 weeks).
How do I convert days to weeks and months?
To convert days to weeks, divide by 7. To convert days to months, divide by 30.4375 (the average month length accounting for all months and leap years). Note that month conversions are approximate — calendar months vary from 28 to 31 days, so a precise answer depends on which specific months are involved.
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