Long distance friendship

Right now most of my friends are in living in Chile, a few here in Australia and one of my best in London and maintaining a fluent communication within the different time zones can be difficult.

Whenever we find the right time to talk I use skype, viber or whatsapp voice messages because I really enjoy a fluent conversation and try to avoid texting back and forth. 

I have this specific group of friends from previous job in Chile. we are three, one living in Santiago, the other in London and me in Sydney and I came up with this time zone solution.