diff --git a/AircraftReport.proto b/AircraftReport.proto
index e6f6119..459c973 100644
--- a/AircraftReport.proto
+++ b/AircraftReport.proto
@@ -5,10 +5,11 @@ import "Aircraft.proto";
 import "BaseTypes.proto";
 
 message AircraftReport {
-    Aircraft   aircraft           = 1; // aircraft information
-    string     initialApproachFix = 2; // last waypoint of the route
-    Coordinate position           = 3; // current WGS84 position
-    Dynamics   dynamics           = 4; // current aircraft dynamics
-    string     destination        = 5; // the destination airport
-    int32      distanceToIAF      = 6; // distance to IAF in NM
+    string     reportTime         = 1; // UTC time of the report
+    Aircraft   aircraft           = 2; // aircraft information
+    string     initialApproachFix = 3; // last waypoint of the route
+    Coordinate position           = 4; // current WGS84 position
+    Dynamics   dynamics           = 5; // current aircraft dynamics
+    string     destination        = 6; // the destination airport
+    int32      distanceToIAF      = 7; // distance to IAF in NM
 }