diff --git a/Calendar/CalendarInterface.py b/Calendar/CalendarInterface.py
new file mode 100644
index 0000000..cc1e4a3
--- /dev/null
+++ b/Calendar/CalendarInterface.py
@@ -0,0 +1,18 @@
+from DataSourceInterface import DataSourceInterface
+
+class CalendarInterface (DataSourceInterface):
+    """Interface for fetching and processing calendar event information."""
+    def get_upcoming_events(self, count):
+        raise NotImplementedError("Functions needs to be implemented")
+
+    def get_today_events(self):
+        raise NotImplementedError("Functions needs to be implemented")
+
+    def get_day_events(self):
+        raise NotImplementedError("Functions needs to be implemented")
+
+    def get_month_events(self, count):
+        raise NotImplementedError("Functions needs to be implemented")
+
+    def get_week_events(self, count):
+        raise NotImplementedError("Functions needs to be implemented")
\ No newline at end of file