How to do it...

To implement this recipe, perform the following steps:

1. Create the following measure:

Greeting = 
    VAR __User = USERNAME()
    VAR __Hour = HOUR(NOW())
    VAR __Prefix = 
        SWITCH(
            TRUE(),
            __Hour < 12 , "Good morning ",
            __Hour >= 12 && __Hour < 17 , "Good afternoon ",
            "Good evening "
        )
RETURN
    CONCATENATE(__Prefix , __User)

2. Create a Card visualization and place the Greeting measure in the Fields area for the Card visualization.