The day of the December solstice is here. The point where the Sun appears to have reached its southern extent and about to begin the six-month journey back north occurs (or occurred) today, 21 December 2017 at 16:28 UTC / 11:28 EST.
Just for fun I think I will still go out at the solstice time with a stick and see where the shadow falls. I always think of doing this to see what I have for landscaping options for creating my own little celestial observatory.
The Earth is not at perihelion on the December solstice; perihelion being that point in our orbit where we are closest to the Sun. Perihelion occurs on 03 January 2018 at 05:35 UTC / 01:35 EST. The day and time varies from year to year and this also is the case in the June Solstice /Aphelion timing.
Thanks to timeanddate.com for the graphic – it getting to be a tradition.