What Is the Time Conversion Calculator?
The Time Conversion Calculator converts a quantity of time from one unit to another among seconds, minutes, hours, and days. It works by first normalizing every value into seconds, then dividing by the factor of the target unit. This makes conversions consistent and accurate no matter which direction you go.
How to Use It
Enter the numeric value you want to convert, choose the source unit under "From," and choose the unit you want under "To." The calculator instantly shows the converted result along with the equivalent number of seconds so you can double-check the math.
The Formula Explained
Each unit has a fixed factor in seconds: 1 second = 1, 1 minute = 60, 1 hour = 3,600, and 1 day = 86,400. To convert, multiply your value by the source factor to get seconds, then divide by the target factor:
$$\text{result} = \dfrac{\text{value} \times \text{fromFactor}}{\text{toFactor}}$$
Worked Example
Suppose you want to convert 90 minutes to hours. First convert to seconds: \(90 \times 60 = 5{,}400\) seconds. Then divide by the hour factor: \(5{,}400 \div 3{,}600 = 1.5\) hours. So 90 minutes equals 1.5 hours.
FAQ
How many seconds are in a day? There are 86,400 seconds in a day (\(24 \times 60 \times 60\)).
Can I convert days to minutes? Yes. For example, 2 days = \(2 \times 86{,}400 = 172{,}800\) seconds, divided by 60 = 2,880 minutes.
Does this account for leap seconds or daylight saving? No. It uses standard fixed unit factors and assumes a 24-hour day, which is suitable for general calculations.
