Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Parsing Non-Standard Date Formats.

Parsing Non-Standard Date Formats

by Allen Wyatt
(last updated July 11, 2015)

Bill is faced with the challenge of importing data into Excel that was originally created in other applications. The problem is that the data contains lots of dates, but they are in a format that Excel doesn't understand. For instance, the dates may be in the format 01.15.11 or 1.15.2011, neither of which is treated as a date by Excel. Bill wants to know how to convert the non-standard dates to a date format that Excel understands.

If the dates are in the same sequence format that you use in your regional settings, then converting is a snap. For instance, if your regional settings use the date format MDY (month followed by day followed by year), and the date you are importing is in the same format, then you can simply select the cells and replace the periods with a slash. When Excel changes 1.15.2011 to 1/15/2011, it automatically parses the result as a date.

If the format you are importing doesn't match your regional settings, then you need to shuffle around the date into the same format. For instance, if the date you are importing is 01.10.11 (January 10, 2011), and your system would interpret this as October 1, 2011, then the easiest way is to separate the date into individual components, and then put them back together. Follow these general steps:

  1. Insert three blank columns to the right of the date column.
  2. Select the cells containing the non-standard dates.
  3. Using the Text to Columns Wizard (Data | Text to Columns) choose delimited data and use a period as the delimiter. After the wizard is done, you end up with three columns containing the month, day, and year.
  4. In the remaining blank column, enter a formula such as the following:
  5.      =DATE(C1,A1,B1)
    
  6. Copy the formula down to other cells next to the dates.
  7. Select the cells containing the formulas you just created, then press Ctrl+C.
  8. Use Paste Special to convert the formulas to results. (Select the Values option when using Paste Special.)
  9. Delete the three columns that contain the separated dates, and keep the column that contains the final dates.

Another solution is to simply use a macro to do the conversion. The following is a user-defined function that takes the non-standard date and converts it to a properly formatted date value. The macro also switches around the position of the month and day, as done in the Text to Columns technique.

Public Function Convert_Date(A As String) As Date
    Dim K As Long
    Dim K1 As Long
    Dim K2 As Long

    K = Len(A)
    K1 = InStr(1, A, ".")
    K2 = InStr(K1 + 1, A, ".")
    Convert_Date = DateSerial(Val(Mid(A, K2 + 1, _
      K - K2 + 1)), Val(Mid(A, K1 + 1, K2 - K1)), _
      Val(Mid(A, 1, K1 - 1)))
End Function

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (3191) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Parsing Non-Standard Date Formats.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He  is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Checking for Words and Phrases

You may want to determine if a document contains a certain set of words or phrases. There are a couple of ways you can make ...

Discover More

Last Non-Zero Value in a Row

If you have a lot of values in a single row, you might want to pull the last non-zero value from that row. There are a ...

Discover More

Clearing the Undo Stack in a Macro

Excel keeps track of the actions you take so that you can undo those actions if any are taken in error. You may want to clear ...

Discover More

Comprehensive VBA Guide Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out Mastering VBA for Office 2010 today!

MORE EXCELTIPS (MENU)

Weekdays in a Month

Want to find out how many of a particular weekday occur within a given month? Here's how you can find the desired ...

Discover More

Calculating Business Days

There are calendar days and then there are business days. Excel provides the NETWORKDAYS function that is helpful to figure ...

Discover More

Working with Elapsed Time

Work with times in a worksheet and you will eventually want to start working with elapsed times. Here's an explanation of ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments for this tip:

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 2 + 7?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.

Links and Sharing