Method code for $world_time.current_season()

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var t;

// This is not very flexible, but works well enough. Note that southern
// hemisphere needs another object, with opposite seasons.
return ["spring", "summer", "fall", "winter"][.local_time() / 2592000 % 4 + 1];

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// Created 19-Nov-1996 as a part of ColdCore, see: @help Credit