Hi. Our software tries to expose a list of supported timezones to an end user for setting up some periodic scheduled task in the UI. Till now we've tried to populate the list of Java supported timezones, filtering out aliases (from backward file). I noticed that zonedata now ships with zonenow.tab file which is exactly what we need for our UI and meets our needs more precisely. Unfortunately it seems quite impossible to migrate old data to this new notation automatically. For example, hte fact that 'Europe/Berlin' is covered by 'Europe/Paris' in zonenow.tab is not mentioned anywhere. Is there a way to determine this fact from tzdata without deep analysis of the rules done by myself? Other simple question: is there a way to know what is "now" in zonenow? Is it defined by the release date of a new version?