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# HOUR function: Description, Usage, Syntax, Examples and Explanation

## What is HOUR function in Excel?

HOUR function is one of Date and Time functions in Microsoft Excel that returns the hour of a time value. The hour is given as an integer, ranging from 0 (12:00 A.M.) to 23 (11:00 P.M.).

## Syntax of HOUR function

HOUR(serial_number)

The HOUR function syntax has the following arguments:

• Serial_number: The time that contains the hour you want to find. Times may be entered as text strings within quotation marks (for example, “6:45 PM”), as decimal numbers (for example, 0.78125, which represents 6:45 PM), or as results of other formulas or functions (for example, TIMEVALUE(“6:45 PM”)).
Worked Example:   Excel Date & Time Functions Example

## HOUR formula explanation

Time values are a portion of a date value and represented by a decimal number (for example, 12:00 PM is represented as 0.5 because it is half of a day).

Worked Example:   Excel Date & Time Functions Example

## Example of HOUR function

Steps to follow:

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

Worked Example:   Excel Date & Time Functions Example

You can adjust the column widths to see all the data, if need be.

 Time 0.75 7/18/2011 7:45 4/21/2012 Formula Description Result =HOUR(A2) Returns 75% of 24 hours 18 =HOUR(A3) Returns the hour portion of the date/time value. 7 =HOUR(A4) A date with no time portion specified is considered 12:00 AM, or 0 hours.