An interactive D3.js Visualisation showing different timezones for various countries over the world.
You can find the live demo Here.
Screenshots:
World Visualisation with different colors for different timezones. 
Hover over India and it shows India’s timezone, with the updated clock. 
Hover over USA and it shows USA’s timezone, with the updated clock. 
Hover over the table row, and it will highlight all the countries with that specific color used for the timezone. (Highlighting all the countries with +2 timezone.) 
Link to Visualisation: Here
Link to Github Repo: Here