The shortest day of the year is almost here, Californians, as the last day of fall approaches.

The winter solstice is on Sunday, Dec. 21, in the Northern Hemisphere and it occurs at 7:03 a.m. PT, according to the Griffith Observatory . The winter solstice marks the start of winter and the shortest day of the year with the fewest hours of daylight, according to the Smithsonian Science Education Center .

When is the first day of winter?

The first day of winter is Dec. 21. That’s according to astronomical seasons, which are based on the “position of the Earth in relation to the sun,” according to the National Oceanic and Atmospheric Administration . However, there’s also meteorological seasons, which are based on the annual temperature cycle and make it easier to calculate seasonal

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