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Daylight Savings Conversions Excel VBA

  1. #1
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    Question Daylight Savings Conversions Excel VBA

    I have a worksheet that lists the times for numerous events in PT (not specified if DST or standard time). I have had a request to insert another column with GMT equivalents for each event. I can run the code where I specify the offset from PT but haven't figured out how to set it up automatically to check whether we are in standard or daylight savings time to correct the offset. I have created a table with the start and end dates for 2011 to 2015 but am not sure how to have it check the specified date to see if it falls in or out of that range or if there is a better way...it is not usually the system date but instead a date chosen by the user from a calendar control (called "DSSEDate" declared as date elsewhere in the code).

    Any thoughts?


    Thanks,
    Judy

  2. #2
    Forum Moderator Leith Ross's Avatar
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    Re: Daylight Savings Conversions Excel VBA

    Hello JudyK,

    This macro (UDF) may help you. This will return the offset from local time to GMT correctly. It automatically checks the system to see if daylight savings time is active or not. Copy the code below into a VBA module in your workbook's VBA project.

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    Macro Test Code
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    Adding the Macro
    1. Copy the macro above pressing the keys CTRL+C
    2. Open your workbook
    3. Press the keys ALT+F11 to open the Visual Basic Editor
    4. Press the keys ALT+I to activate the Insert menu
    5. Press M to insert a Standard Module
    6. Paste the code by pressing the keys CTRL+V
    7. Make any custom changes to the macro if needed at this time.
    8. Save the Macro by pressing the keys CTRL+S
    9. Press the keys ALT+Q to exit the Editor, and return to Excel.
    Sincerely,
    Leith Ross

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