Access a custom ListView item

Question

Hello, l'm new here so hope to follow guidelines as I'm a newbie for both the side and android.

For my first app I'm trying to make a world clock. In order to check it the time is shown and update in seconds. (00:00:00) As the only thing I want to update every second is the time I don't want to use: ListView's notfiyDataHasChanged()

I have a custom ListView & extended BaseAdapter and row.xml with each ListView item layout.

Trying: lv.getChildCount() returns 0; So I understand it has no child. But I don't know how I can retrieve the View of the specific item in the listview. Then call that view's TextView by findViewById(R.id.time) and set it each second.

I've googled and read alot of threads but still didn't get that :(

Thank You.