Extra Time Zone Variables - More of them

Someone already suggested

{tzXv} the variance in hours on the 24 hour scale of the current time zone (X) from UTC. (i.e. same thing you show in the text identifier in the list i.e. 0 for London, +9 for Tokyo, -8 for LA, etc.)

And

{tzXa} three character alpha identifiers for Airports in each of the time zones (e.g. JFK for New York, LGW for London, SVO for Moscow, DXB for Dubai, etc.)
{tzXs} three character alpha identifiers for each of the time zones (something like names e.g. NYC for New York, LON for London, etc. )
{tzX24} two digit hour identifier for current hour (24 hour scale) for each of the time zones

Great way to get people involved on G+....have a poll, ask people to suggest things for the zones that they live in!