How to change number to time and day of the week in dart

June 27, 2022

I have a json response that requires that I change ‘0900’ to 9:00am and ‘1300’ to 1:00pm, 5 to Friday

{

      'start': '0900',
      'end': '1300',
      'day' : 5

}

>Solution :

You can do this way :

 print(_convertToTime("1300"));
 print(_convertToTime("0900"));
  
  
  
 var days ={
      0  : "Sunday",
      1  : "Monday",
      2  : "Tuesday",
      3  : "Wednesday",
      4  : "Thursday",
      5  : "Friday",
      6  : "Saturday",
 };
  
  print(days[5]);

 
 _convertToTime(String key) {
   
    var d = key.replaceAllMapped(RegExp(r".{2}"), (match) => "${match.group(0)} ");
  
  DateFormat dateFormat = DateFormat("HH mm");
  var dateTime = dateFormat.parse(d);
  DateFormat dateFormatTarget = DateFormat("hh:mm a");
  return dateFormatTarget.format(dateTime);
 }