Taking as reference the Meridian 0º of Greenwinch or UTC 0º = 0 hours, the earth is divided into 2 hemispheres, with 12 time zones to the east (0 to +12) and 12 time zones to the west (0 to -12).
There are countries or localities whose geographical location and/or for convenience, use different intermediate times to the exact meridians 15º as they are: Iran - St. John's - Afghanistan - India - Sri Lanka - Nepal - Myanmar - Eucla - Northern Territory of Australia - South Australia - Lord Howe Island (in winter) - Chatham Islands. These countries use intermediate hours of 30 or 45 minutes. Most of these time zones are between Asia and Oceania
This map has tried to keep the four basic colors used from the first wikipedia time zone map, except for the pistachio green color, which to differentiate it more from the rest, it has been decided to replace it with the color pink, (yellow - [orange- brown] - green - pink).