diff --git a/src/com/AircraftReporter.cpp b/src/com/AircraftReporter.cpp
index b222f9a..22e5e31 100644
--- a/src/com/AircraftReporter.cpp
+++ b/src/com/AircraftReporter.cpp
@@ -69,7 +69,7 @@ bool AircraftReporter::send(aman::AircraftReport& report) {
         /* set the report time */
         std::stringstream stream;
         auto reportTime = std::chrono::utc_clock::now();
-        stream << std::format("{0:%y%m%d%H%M%S}", reportTime);
+        stream << std::format("{0:%Y%m%d%H%M%S}", reportTime);
         report.set_reporttime(String::splitString(stream.str(), ".")[0]);
 
         /* serialize the report */