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How to convert US standard time format to 24 hours (military) format using Excel 2013

By Johan van Soest.

Published : 2014-07-12.

Last updated : 2017-05-02.

Getting those logfiles in an US standard time format using the PM/AM notation and have to present the data correctly sorted? Just convert them using these easy steps in Microsoft Excel 2013. You may also watch the step by step animation.

Step 1

Load your log or text file in Excel using a separator that separates the time from the AM/PM bit. Normally this will be a space character.

2014-07-05 1:25:59 PM "High level sensor 3" Alert
2014-07-05 1:51:23 PM "Normal level sensor 3" Informational
2014-07-05 10:04:46 AM "Switch 7 open" Warning
2014-07-05 10:19:11 AM "Switch 7 closed" Warning

Example log-file using US-Time format. (Notice columns are not aligned.)

Step2

After importing the log file with the import wizzard, your sheet should resemble:

	A	B	C	D	E
1	2014-07-05	1:25:59	PM	High level sensor 3	Alert
2	2014-07-05	1:51:23	PM	Normal level sensor 3	Informational
3	2014-07-05	10:04:46	AM	Switch 7 open	Warning
4	2014-07-05	10:19:11	AM	Switch 7 closed	Warning

Step 3

Inserting a blank column gives:

	A	B	C	E	F
1	2014-07-05	1:25:59	PM	High level sensor 3	Alert
2	2014-07-05	1:51:23	PM	Normal level sensor 3	Informational
3	2014-07-05	10:04:46	AM	Switch 7 open	Warning
4	2014-07-05	10:19:11	AM	Switch 7 closed	Warning

Enter the following formula in cell D1:

=IF(UPPER(C1)="PM";B1+"12:00:00";B1)

Now propagate the formula in the column D*

Step 4

Now you have the following in your Excel sheet:

	A	B	C	D	E	F
1	2014-07-05	1:25:59	PM	0,559710648	High level sensor 3	Alert
2	2014-07-05	1:51:23	PM	0,577349537	Normal level sensor 3	Informational
3	2014-07-05	10:04:46	AM	0,419976852	Switch 7 open	Warning
4	2014-07-05	10:19:11	AM	0,429988426	Switch 7 closed	Warning

Step 5

Next format Cells in column D as "Time" of "Type" "*13:30:55" This results in:

	A	B	C	D	E	F
1	2014-07-05	1:25:59	PM	13:25:59	High level sensor 3	Alert
2	2014-07-05	1:51:23	PM	13:51:23	Normal level sensor 3	Informational
3	2014-07-05	10:04:46	AM	10:04:46	Switch 7 open	Warning
4	2014-07-05	10:19:11	AM	10:19:11	Switch 7 closed	Warning

This data can be sorted on date (Column A) and time (Column D)

Example animation

Reload the page to restart the animation.

Animation on how to convert US-Time format to ISO-Time format using Microsoft Office Excel 2013.
Download the example file here.

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