break;
case 'f': // %f Microseconds (000000..999999)
builder.appendMillisOfSecond(6);
break;
case 'H': // %H Hour (00..23)
builder.appendHourOfDay(2);
break;
case 'h': // %h Hour (01..12)
case 'I': // %I Hour (01..12)
builder.appendClockhourOfHalfday(2);
break;