diff --git a/Classes/TimeConverter.cs b/Classes/TimeConverter.cs
index dd5bf4e0..544b7d74 100644
--- a/Classes/TimeConverter.cs
+++ b/Classes/TimeConverter.cs
@@ -5,11 +5,81 @@
 
 namespace BerlinClock
 {
-    public class TimeConverter : ITimeConverter
+public class TimeConverter : ITimeConverter
     {
+        const string specificTime = "24:00:00";
+
         public string convertTime(string aTime)
         {
-            throw new NotImplementedException();
+            if (aTime == specificTime)
+            {
+                return returnSpecificTime();
+            }
+
+            DateTime hoursAndMins = Convert.ToDateTime(aTime);
+
+            int hours = hoursAndMins.Hour;
+            int mins = hoursAndMins.Minute;
+            int secs = hoursAndMins.Second;
+
+            string hours_rows = convertHOUR(hours);
+            string minutes_rows = convertMINUTE(mins);
+            // every 2 seconds = Y
+            string second_indicator = ((secs % 2 == 0) ? "Y" : "O");
+
+            return
+                second_indicator + "\r\n" +
+                hours_rows + "\r\n" + minutes_rows;
+        }
+
+        // functions producing rows:
+        static string convertHOUR(int hour)
+        {
+            string first_row = string.Empty;
+            string second_row = string.Empty;
+
+            // e.g. 15 = 3 * 5 = RRRO
+            for (int i = 0; i < hour / 5; i++)
+                first_row += 'R';
+            for (int i = hour / 5; i < 4; i++)
+                first_row += 'O';
+
+            // e.g. 2 = 2 * 1 = RROO
+            for (int i = 0; i < hour % 5; i++)
+                second_row += 'R';
+            for (int i = hour % 5; i < 4; i++)
+                second_row += 'O';
+
+            return first_row + "\r\n" + second_row;
+        }
+        static string convertMINUTE(int minute)
+        {
+            string first_row = string.Empty;
+            string second_row = string.Empty;
+
+            // e.g. 25 = 5 * 5 = RRYRROOOOOO
+            for (int i = 0; i < minute / 5; i++)
+            {
+                if (i % 3 == 2) { first_row += 'R'; }
+                else { first_row += 'Y'; }
+            }
+            for (int i = minute / 5; i < 11; i++)
+                first_row += 'O';
+
+            //e.g 3 = 3 * 1 = YYYO
+            for (int i = 0; i < minute % 5; i++)
+                second_row += 'Y';
+            for (int i = minute % 5; i < 4; i++)
+                second_row += 'O';
+
+            return first_row + "\r\n" + second_row;
+        }
+
+        private string returnSpecificTime()
+        {
+            return
+                "Y" + "\r\n" + "RRRR" + "\r\n" + "RRRR" + "\r\n" +
+                "OOOOOOOOOOO" + "\r\n" + "OOOO";
         }
     }
 }