Index: trunk/src/org/openstreetmap/josm/io/NmeaReader.java
===================================================================
--- trunk/src/org/openstreetmap/josm/io/NmeaReader.java	(revision 10474)
+++ trunk/src/org/openstreetmap/josm/io/NmeaReader.java	(revision 10475)
@@ -20,4 +20,5 @@
 import org.openstreetmap.josm.data.gpx.ImmutableGpxTrack;
 import org.openstreetmap.josm.data.gpx.WayPoint;
+import org.openstreetmap.josm.tools.date.DateUtils;
 
 /**
@@ -166,4 +167,6 @@
 
     public NmeaReader(InputStream source) throws IOException {
+        rmcTimeFmt.setTimeZone(DateUtils.UTC);
+        rmcTimeFmtStd.setTimeZone(DateUtils.UTC);
 
         // create the data tree
Index: trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java	(revision 10474)
+++ trunk/src/org/openstreetmap/josm/tools/date/DateUtils.java	(revision 10475)
@@ -30,4 +30,9 @@
 public final class DateUtils {
 
+    /**
+     * The UTC time zone.
+     */
+    public static final TimeZone UTC = TimeZone.getTimeZone("UTC");
+
     protected DateUtils() {
         // Hide default constructor for utils classes
@@ -46,5 +51,5 @@
      * with the timezone lookup, is very expensive.
      */
-    private static final GregorianCalendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+    private static final GregorianCalendar calendar = new GregorianCalendar(UTC);
     private static final GregorianCalendar calendarLocale = new GregorianCalendar(TimeZone.getDefault());
     private static final DatatypeFactory XML_DATE;