City Navigator Europe NT 2011.30 comes with "Time Zone Map v6.0" in the additions batch. Possibly the same with City Navigator North America NT 2011.30.
MD5 hash = 474e744d466bffeb1647efa3207344bf
Extract from Garmin Map Updater log for CNEUNT 2011.30:
Otherwise the Garmin WebUpdater should also suggest update to "Time Zone Map v6.0" if there's some earlier version detected.Code:Please Login or Register to see the links