How Can Parse Youtube Duration to Date?

Question

I can't parse Youtube duration to date or date time, I search and visit many web site but I can't parse youtube string duration

Youtube duration sample is : PT15M33S

Please click for youtube api documentation

Answer 1

It's ISO 8601 durations are given in the format P[n]Y[n]M[n]DT[n]H[n]M[n]S

Examples:

20 seconds:

PT20.0S

One year, 3 month, 3 days, 4 hours, 5 minutes, 10 seconds:

P1Y3M3DT4H5M10S

Unfortunately, dart does not give parser api Duration class So you have to parser your own and feed into Duration and convert to Datatime

You can try Match-class

String durationString = "P2Y5M3W4DT5H4M2S";
String regxPattern= "^P(\\d+Y)?(\\d+M)?(\\d+W)?(\\d+D)?(T(\\d+H)?(\\d+M)?(\\d+S)?)?\$";

  print(regxPattern);

RegExp re = new RegExp(regxPattern);

if (re.hasMatch(durationString)) {

   for (var m in re.allMatches(durationString)) {


     print("total:"+m.group(0));
     print("Y:"+m.group(1));
     print("M:"+m.group(2));
     print("W:"+m.group(3));
     print("D:"+m.group(4));
     print("Time:"+m.group(5));
     print("H:"+m.group(6));
     print("M:"+m.group(7));
     print("S:"+m.group(8));
     Duration fastestMarathon = new Duration(hours:m.group(6), 
                                             minutes:m.group(7), 
                                             second,m.group(8));

   }

}