Different Time on Each Watch Face

I am familiar with the GMT watch face and it works well for most of my needs. When I travel in time zones different from my home time zone, I must change the time on my phone and then change the world time (back to my home tome).

It would be awesome to have the flexibility of setting a different primary time zone on each watch face. That would enable the wearer to simply change the watch face to display a completely different time without having to actually change the time on the phone. The iPhone could be left on the main/home time zone.

Anyone else interested in this capability? Thanks.