timezone

src/main.cpp

@@ -626,12 +626,13 @@ void setup() {
     }
     SplashScreen::setStatusLine(tft, 2, I18n::t(StringId::SPLASH_READY));
 
-// Once IP geolocation has provided a UTC offset, set the
-    // timezone accordingly - timestamps (flight log, log file names)
-    // then show the REAL local time instead of UTC, automatically correct worldwide.
-    if (LocationManager::hasUtcOffset()) {
-        configTime(LocationManager::utcOffsetSeconds(), 0, "pool.ntp.org", "time.nist.gov");
-    }
+// Sync time via NTP (UTC), then set timezone to Central European
+    // Time (Copenhagen) with automatic DST handling (CET/CEST).
+    // This makes localtime_r() return the correct local time year-round
+    // regardless of when the device was booted.
+    configTime(0, 0, "pool.ntp.org", "time.nist.gov");
+    setenv("TZ", "CET-1CEST-2,M3.5.0/2,M10.5.0/3", 1);
+    tzset();
 
     AircraftTable::init();
     AirlineLookup::init();