How i Can convert 12 hour time string into 24 hour in flutter?

Question

I have a 12 hour formatted String like 02:00 p.m. i want to convert it into 24 hour time format like 14:00:00.

Answer 1

you can use the intl package https://pub.dev/packages/intl
here is the documentation for the class u need https://pub.dev/documentation/intl/latest/intl/DateFormat-class.html

Answer 2

If you have dateTime or TimeOfDay type you can use intl package, otherwise here is my workaround.

String time12to24Format(String time) {
// var time = "12:01 AM";
 int h = int.parse(time.split(":").first);
 int m = int.parse(time.split(":").last.split(" ").first);
 String meridium = time.split(":").last.split(" ").last.toLowerCase();
  if (meridium == "pm") {
   if (h != 12) {
     h = h + 12;
   }
 }
 if (meridium == "am") {
   if (h == 12) {
     h = 00;
   }
 }
 String newTime = "${h == 0 ? "00" : h}:${m == 0 ? "00" : m}";
 print(newTime);

 return newTime;
}