time_matcher.js

// Generator
function timeDataGenerator(interval) {
  var times = [];
  for (x = 0; x < 24; x++) {
    if (x.toString().length === 1) { var hours = "0"+x; }
    else { var hours = x; }
    for (y = 0; y < 60; y+=interval) {
      if (y.toString().length === 1) { var minutes = "0"+y; }
      else { var minutes = y; }
      times.push(hours+":"+minutes);
    }
  }
  return times;
}

// Matcher
var  timeData = timeDataGenerator(5)

function matchTime(req) {
  var matcher = new RegExp( "^0?" + req, "i" ),
      result = $.grep(timeData, function(item,index){
                  return matcher.test(item);
                });

  return result;
}

matchTime("10:") -> ["10:00", "10:05",....., "10:55"]
matchTime("10:3") -> ["10:30", "10:35"]