Get number of days between 2 dates

Summary:

Greetings,

Need your input on switching from on-premise Workforce application to EPM.

We've migrated to Cloud and one of the feature I used quite frequently in Workforce is the macro @JCstDateDiff which provides me the number days elapsed between 2 provided dates. What is the equivalent in Cloud?

Content (required):

Account defined as dynamic calc, called YTD_Exp with member formula

   IF("Start_Month" < "End_Month")     @JCstDateDiff("Start_Month","End_Month","yyyyMMdd","yyyyMMdd");

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Version (include the version you are using, if applicable):

on premise 11.1.2.4

Cloud, not sure..

Code Snippet (add any code snippets that support your topic, if applicable):