This is awesome, reminds me of timezone.io a product @djfarrelly built for the Buffer team.
I think a Slack integration would be usefule so you could just type /teleport @ team mate and see their timezone 🚀
//EDIT//
Just saw that this product I described already exists https://teamtime.zone/
@david_diam we actually have built one experimental Slack integration, for Teleport Flock (https://www.producthunt.com/tech...), a sister product for Sundial that helps you decide where in the world to bring your distributed team physically together.
This is how to make it work, if you'd like to play around: http://teleport.org/2015/07/tele...
