Institute of Translation & Interpreting offers this free and unique facility to anyone who is either considering organising an event or thinking about attending an event. ICE can be used for calls for papers, training, conferences, meetings, product launches, social events etc. Enter details of your events and see them instantly displayed. ICE includes an RSS feed to speed dissemination to a worldwide audience.
The abbreviation ICE refers to a train in Germany, but I don’t suppose that matters.
There is also a set of calendars showing holidays in various countries. They don’t seem to know that January 6 is a holiday in Bavaria, though.