Looking up by shortname? or TZ name? or CountryCode?

[rvdbreemen]

In my situation, I want to give a flexible way to just enter common TZ references as a text field.

So instead of looking up just by the long name: Europe/Amsterdam
Would it also be possible to lookup by, just the short name: Amsterdam
Or the common TZ name: CET / CEDT
Or the country code: NL

A user can be pointed to the long name, but in most cases, the short name, Country Code or short name is enough too.