The Outsystems function (CurrDateTime()) gives the current Date Time in DD/MM/YYYY HH:MM:SS format. But this component (extension) gives the Current Date Time With Milliseconds (in DD/MM/YYYY HH:MM:SS:mmm format). 

This extension is useful for -

1. Maintaining logs

2. Auditing

3. Performance analysis for the application.

Output Date Type - It returns the current date time in milliseconds as Text.