GTM: on write, take into correctly timezone value to convert to UTC (…

…refs #2696)
OSGeo · Jun 20, 2020 · 6f6da6f · 6f6da6f
1 parent 11fc52a
commit 6f6da6f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/gdal/ogr/ogrsf_frmts/gtm/gtmwaypointlayer.cpp b/gdal/ogr/ogrsf_frmts/gtm/gtmwaypointlayer.cpp
@@ -155,7 +155,7 @@ void GTMWaypointLayer::WriteFeatureAttributes( OGRFeature *poFeature, float alti
                     brokendowndate.tm_sec = sec;
                     GIntBig unixTime = CPLYMDHMSToUnixTime(&brokendowndate);
                     if (TZFlag != 0 && TZFlag != 1)
-                        unixTime -= (TZFlag - 100) * 15;
+                        unixTime -= (TZFlag - 100) * 15 * 60;
                     if (unixTime <= GTM_EPOCH || (unixTime - GTM_EPOCH) != (int)(unixTime - GTM_EPOCH))
                     {
                         CPLError(CE_Warning, CPLE_AppDefined,