General :: Convert Timezone To Text?

I am trying to convert the results of timezone to text for use in textView. I am new ro android devloping,

Here is my current code:

Code:

TimeZone tz = TimeZone.getDefault();
TextView tv = new TextView(this);
tv.setText(tz);

but it gives me this error:

Code:

The method setText(CharSequence) in the type TextView is not applicable for the arguments (TimeZone). I understand the error, but I do not know how to convert the Timezone to "Eastern Standard Time" or "Pacific Standard Time" or whatever the case may be.