Event Module: Translation of Time-zone on Event-Catalog is not correct

All the timezone settings are correctly set to GMT +01:00 Europe/Berlin (Standard timezone, My Profile timezone, Events Timezone, Template timezone). But every event on the Event-Catalog-Page has timezone CEST. For example: Thursday, August 1, 2013 10:00:00 AM CEST - 10:45:00 AM CEST. But it should be: Donnerstag, 1. August 2013 10:00 Uhr MESZ - 10:45 Uhr MESZ. The translation on the Event-Detail-Page is correct. Any ideas?