extend the schedule time

AircraftSchedule.proto

@@ -4,8 +4,9 @@ package aman;
 import "Aircraft.proto";
 
 message AircraftSchedule {
-    Aircraft aircraft       = 1; // aircraft information
-    string   arrivalRoute   = 2; // planned arrival route
-    string   arrivalRunway  = 3; // planned arrival runway
-    string   reachIafAtTime = 4; // UTC time when the aircraft needs to pass IAF
+    Aircraft aircraft          = 1; // aircraft information
+    string   arrivalRoute      = 2; // planned arrival route
+    string   arrivalRunway     = 3; // planned arrival runway
+    string   reachIafAtTime    = 4; // UTC time when the aircraft needs to pass IAF
+    string   reachRunwayAtTime = 5; // UTC time when the aircraft needs to touch down
 }