diff -ur qtwebengine-opensource-src-5.6.0-beta/src/3rdparty/chromium/content/browser/time_zone_monitor.cc qtwebengine-opensource-src-5.6.0-beta-system-icu54/src/3rdparty/chromium/content/browser/time_zone_monitor.cc
--- qtwebengine-opensource-src-5.6.0-beta/src/3rdparty/chromium/content/browser/time_zone_monitor.cc	2015-12-10 18:17:21.000000000 +0100
+++ qtwebengine-opensource-src-5.6.0-beta-system-icu54/src/3rdparty/chromium/content/browser/time_zone_monitor.cc	2016-01-08 23:40:36.387525597 +0100
@@ -22,7 +22,7 @@
 
 void TimeZoneMonitor::NotifyRenderers() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-#if defined(OS_CHROMEOS) || U_ICU_VERSION_MAJOR_NUM < 54
+#if defined(OS_CHROMEOS) || U_ICU_VERSION_MAJOR_NUM < 55
   // On CrOS and older ICU versions, ICU's default tz is already set to a new zone.
   // No need to redetect it with detectHostTimeZone().
   scoped_ptr<icu::TimeZone> new_zone(icu::TimeZone::createDefault());