break;
case 'W': // %W Weekday name (Sunday..Saturday)
builder.appendDayOfWeekText();
break;
case 'w': // %w Day of the week (0=Sunday..6=Saturday)
builder.appendDayOfWeek(1);
break;
case 'Y': // %Y Year, numeric, four digits
builder.appendYear(4, 4);
break;
case 'y': // %y Year, numeric (two digits)