fixDateWithTz function
Implementation
String fixDateWithTz(String dateTimeString) {
switch (dateTimeString.length) {
case 10:
dateTimeString += dateTimeTail;
break;
case 16:
dateTimeString += ':00$gmtTail';
break;
default:
dateTimeString = addMissingTz(dateTimeString);
}
return dateTimeString;
}