From be1df4819a45262dbd94f50be0e2538dbb6b637b Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Fri, 3 Jun 2005 08:39:50 +0000
Subject: [PATCH] I had hoped that gmtime's lack of thread-safety wouldn't bite
 us. It does. Fix jumping clock hands.

---
 src/ATC/AIMgr.cxx | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/ATC/AIMgr.cxx b/src/ATC/AIMgr.cxx
index c3682718f..629d5d97b 100644
--- a/src/ATC/AIMgr.cxx
+++ b/src/ATC/AIMgr.cxx
@@ -353,8 +353,13 @@ void FGAIMgr::GenerateSimpleAirportTraffic(string ident, double min_dist) {
 	bool cessna = true;
 	
 	// Get the time and only operate VFR in the (approximate) daytime.
-	time_t now = globals->get_time_params()->get_cur_time() + time_t(aptpos.lon() * 240.0);
-	int loc_time = gmtime(&now)->tm_hour;
+	struct tm *t = globals->get_time_params()->getGmt();
+	int loc_time = t->tm_hour + int(aptpos.lon() / (360.0 / 24.0));
+	while (loc_time < 0)
+		loc_time += 24;
+	while (loc_time >= 24)
+		loc_time -= 24;
+
 	//cout << "loc_time = " << loc_time << '\n';
 	if(loc_time < 7 || loc_time > 19) return;
 	
-- 
2.39.5