incorrect calls to timefield_integer_to_time?

Several instances of this sort of call to timefield_integer_to_time() in the code:

    $variables['time']['formatted_value'] = trim(timefield_integer_to_time('g:i a', $variables['time']['value']));

I'm not sure if this is a bug. AFAICT timefield_integer_to_time() expects an array of settings.