Poljot Automatic 3133 - Setting the World Time Scale

HOW TO USE THE WORLD TIME FUNCTION
Note: Cities of the 12 time zones easterly GMT are at the external scale. Cities of
the 12 time zones westerly GMT are at the internal scale. The time of day of cities
at the external scale is in opposition the time of day of cities at the internal scale.
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(for models with World time scale)