Universal Transverse Mercator (UTM)
Indonesia has more land than Mexico and almost double the population. In fact, it's the 4th largest population in the world. Also, It spans through 3 timezones.
Timezones have always seemed mysterious because of the mass distortions we are use to seeing in everyday globe models.
World Map timezones
The Azimuthal Equidistant map is a fair representation.
Even Chinese ship captains know that South America is not where many are accustomed to believe.