diff --git a/API-Documentaion.md b/API-Documentaion.md
index fd067c4..46d4385 100644
--- a/API-Documentaion.md
+++ b/API-Documentaion.md
@@ -29,7 +29,7 @@ Section that contains the specification for the courses get request. /courses re
 ### /timetable/{coursename}
 Section that contains the specification for the /timetable/{coursename} get request. /timetable/{coursename} returns 6 arrays (Monday to Saturday) containing the timetable. Each array (day) contains 7 lessons.
 Each lesson has the following values:
-* lessonID: formate: DAY.LESSON, range: 0.0 to 5.6 (0.0 = Monday.firstLesson, 5.6 = Saturday.lastLesson)
+* lessonID: formate: DAY.TIMESLOT.LESSON, range: 0.0.0 to 5.5.x (0.0.0 = Monday.firstTimeSlot.firstLesson, 5.6.x = Saturday.lastTimeSlot.lastLesson)
 * subject: the lesson subject
 * teacher: the lesson teacher
 * room: the room in which the lesson takes place
@@ -42,14 +42,14 @@ Each lesson has the following values:
   },
   "Monday": [
     {
-      "lessonID": "0.0",
+      "lessonID": "0.0.0",
       "subject": "Computernetze 1",
       "teacher": "Mayer E.",
       "room": "A213",
       "remark": ""
     },
     {
-      "lessonID": "0.1",
+      "lessonID": "0.1.0",
       "subject": "",
       "teacher": "",
       "room": "",
@@ -57,7 +57,7 @@ Each lesson has the following values:
     },
     ,
     {
-      "lessonID": "0.2",
+      "lessonID": "0.2.0",
       "subject": "Systemprogramm.",
       "teacher": "Mayer E.",
       "room": "A213",
@@ -67,14 +67,14 @@ Each lesson has the following values:
   ],
   "Tuesday": [
      {
-      "lessonID": "1.0",
+      "lessonID": "1.0.0",
       "subject": "",
       "teacher": "",
       "room": "",
       "remark": ""
     },
     {
-      "lessonID": "1.1",
+      "lessonID": "1.1.0",
       "subject": "Softw. Engin. 1",
       "teacher": "Dorer",
       "room": "B005",
@@ -82,7 +82,7 @@ Each lesson has the following values:
     },
     ,
     {
-      "lessonID": "1.2",
+      "lessonID": "1.2.0",
       "subject": "Softw. Engin. 1",
       "teacher": "Dorer",
       "room": "B005",