
Explanation:
Box 1: Now() only.
The Now function returns the current date and time as a date/time value.
Box 2: Switch() or IF()
If and Switch functions in Power Apps determines whether any condition in a set is true (If) or the result of a formula matches any value in a set (Switch) and then returns a result or executes an action.
Box 3: isMatch( TextInput1.Text, " emergency " ,Contains & IgnoreCase ) Example: IsMatch( TextInput1.Text, " hello " , Contains & IgnoreCase ) Tests whether the user ' s input contains the word " hello " (case insensitive).
Reference:
https://docs.micro soft.com/en-us/powerapps/maker/canvas-apps/functions/function-if