<%args>
	$name => undef
	$SETS => undef
</%args>
<%init>
	return undef unless ref $SETS;
	return undef unless $name;
	return undef unless $SETS->{$name.'_hour'}   =~ /^\d+$/;
	return undef unless $SETS->{$name.'_minute'} =~ /^\d+$/;
	return undef unless $SETS->{$name.'_second'} =~ /^\d*$/;

	return sprintf '%02d:%02d:%02d', $SETS->{$name.'_hour'}, $SETS->{$name.'_minute'}, $SETS->{$name.'_second'} || 0;
</%init>