Ability to star/favourite a time zone

Small quality of life improvement.

I live in Australia, I often switch from UTC -4 (New York) to UTC +10 (Sydney) to check time relative to executions, news, TopstepTV, etc.

It would be great to be able to have a favourites features for the time zones to make it easier. Much like with the timeframe or drawings where you can add the star next to the ones you use the most.