Throughout history, this system has been refined and developed further. The system of dividing a day into 24 equal hours, each hour into 60 minutes, and each minute into 60 seconds, has its roots in ancient civilizations of Egypt and Greece. For example, to convert hours to minutes, the number of hours is multiplied by 60. To convert a large unit of time into a smaller unit, the conversion factor must be multiplied. The number of hours must be divided by 24 as there are 24 hours in a day.ġ2 hours = 12/24 = 0.5 days Converting a large unit of time into a smaller unit When converting hours to days, the process is different. The result is a decimal number and can be easily converted to the 24-hour format. Similarly, to convert minutes to hours, the number of minutes is divided by 60. To convert from seconds to minutes, the number of seconds is divided by 60. In general, when converting from a smaller unit of time to a larger one, division is necessary. Number of minutes/60 = Conversion of hours and minutes to decimal Converting a small unit of time into a larger unit The time zone doesn't matter because the decimal system always represents a duration and not a specific point in time. However, it is important to note that decimal time is not widely used in everyday life and is less common compared to the traditional 12-hour or 24-hour clock formats.Ĭonverting hours and minutes into a decimal number is not complicated and almost no calculator is needed. Minutesĭecimal time is primarily used in fields that require precise timekeeping, such as science, technology, mathematics and engineering. Re-select and re-copy the entire decimal table, and then highlight the entire original "hh:mm" time table and press "Ctrl + V.The following table lists the minutes in the time format with the respective decimal values as a conversion chart. Highlight the entire completed table of decimal values and copy it with "Ctrl + C." Right-click on the first cell in this copied data and click the "123" icon for "Values" under "Paste Options." This will replace all the formulas with the final decimal data. For large tables, you can highlight an entire section of blank cells before pressing "Ctrl + V" to fill them all in instead of pasting in each one separately. Repeat the pasting process for every empty cell until each cell of time data has a matching decimal cell. The formula will automatically adjust the cell number by the distance it moved from the copied cell, so you won't need to edit it at all. Move the selector down to the next empty cell, equivalent to the location of the next time data on the original table, and press "Ctrl + V" to paste the formula. This copies the formula, not the decimal output. Press "Enter" to finish the formula and display the converted decimal form of the first time cell.Ĭlick back on the finished cell and press "Ctrl + C" to copy it. Replace both "#" fields with the cell location of the first cell of time data. Type the formula "=(#-INT(#))*24" into the cell. You can use a cell anywhere on the worksheet, but you need an empty area, starting at this cell, equal in size to the existing data table. Click on an open cell off to the side of the first entry in the existing data.
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