I've searched the internet and even opened a ticket with Salesforce in search of culture codes that are compatible with the 4th sting in this function:

%%=FormatDate("2012-10-05 03:21:34.567890", "MMM DD, YYYY", "HH:MM:SS.MMM", "en-US")=%%

I could spend hours making guesses and testing, but before I go thought all that, I was hoping maybe someone in the community knows where I can find a list of popular countries and their respective codes that are supported in this function.


I believe what you are looking for is this Microsoft library

Or you could reference this resource from .basicdatepicker.com.

Sample Image of a snippet from .basicdatepicker.com:

enter image description here

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  • thanks, Gortonington. Do you know if ALL of these are compatible with AMPscript/SFMC? – JulieHurtz Jan 19 '18 at 19:30
  • I would say with confidence yes to the MSO ones, the ones on basicdatepicker.com I cannot say 100% though - but I would say more than likely yes. – Gortonington Jan 19 '18 at 19:34

Just came across this lovely document. If it has always been there, i don't know how I missed it before, but here you go if you came across this post: https://help.salesforce.com/articleView?id=admin_supported_locales.htm&type=5

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