When Is Spring Solstice 2025 In Canada. Spring equinox 20 march, summer solstice 20 june, autumn equinox 22 september, winter solstice 21 december. (december 21, 09:20 utc) 2025 spring equinox march 20 at 5:01 a.m., eastern daylight time.
Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. Summer starts at the moment when the sun is farthest north:
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