Are the 24 solar terms unique to China?

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In the past, there was a limerick that could help remember 24 festivals:

Spring rain surprises spring and bright valley days, (beginning of spring, rain, sting, vernal equinox, Qingming, Grain Rain)

Busy summer is related to hot summer, (long summer, small full, busy, summer solstice, light summer, great summer).

Autumn dew and autumn frost fall, (beginning of autumn, summer heat, white dew, autumnal equinox, cold dew, first frost)

It snows in winter, it snows in winter, and it's a little cold in winter. (beginning of winter, light snow, heavy snow, winter solstice, slight cold, severe cold)