How about changing the sequence of calling the months?

I often wonder why we don't re-arrange the regular Jan-Dec sequence of calling the months to synchronize seasons across continents. For instance, why can't December be experienced as a cold winter month in Australia, like it is in London or New York. If you live in Australia or some place else in the Southern hemisphere, when it's winter in Europe it's the opposite in Australia (summer). But if we just change the sequence of calling the months, December would move to what is now June and be as cold and winter in Australia in December as it is in London or New York! :)

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