The NorthernHemisphere’s spring — or vernal — equinox can land between March 19 and 21, depending on the year. Its fall – or autumnal — equinox can land between Sept. 21 and 24.
The winter solstice is Saturday, bringing the shortest day and longest night of the year to the NorthernHemisphere The winter solstice is Saturday, bringing the shortest day and longest night of ...