I’ve neglected to celebrate the solstice… yet again. Shame on me, I’m a poor pagan indeed. Time to amend that.

Flickr user jbum posted this “Tag Graph” chart. It is made up of tiny image thumbnails from pictures posted to flickr where the image is tagged “Sunset”. He has charted the time the image was taken as the vertical position and the date the image was taken as the horizontal position. The result is a nice waveform. See that? The dip just left of image center is the summer, when the sun sets later in the day. *
Today, we are just after the bottom of that curve.
The wave rises up as sunset pictures are taken earlier and earlier in the day later and later in the year. The light of day decreases until December. The wave crests on the December solstice, and then the sun starts to set later in the day. The light of day increases until June.
Jbum noticed a faint echo of the sunset curve at a 12 hour offset. His guess, and I agree completely, is that some few camera users have their cameras’ internal clocks set incorrectly with AM for PM.
* The sun sets later in the summer, but the June solstice is in summer only in the northern hemisphere. South of the equator, June is a winter month. Flickr must not have enough southern hemisphere users to show up on this chart.
That fat wave of sunsets appears to be a swath 4 hours wide, while a “sunset” can only occur at a given moment each day. What gives? I have a few ideas and there might be more.
The time of sunset varies each day by latitude, that is, how far north or south you are from the equator. Think of “Land of the Midnight Sun” being used to describe far north locations like Alaska.
The time you observe sunset is also effected by the time zone. If you are standing at the western most edge of your time zone, talking to a buddy who’s standing just across the state line, you will see the sunset at the same moment, but your watches (and presumably your digital cameras), set to the local timezone will show 1 hour of difference.
Further, the thing we photographers call a sunset is vaguer and more tolerant of interpretation than the event astronomers call a sunset. So we end up with a wide variety of times being reported for sunsets observed.
Saint John the Baptist, also known as Saint John the Forerunner, was born on the June solstice. After the June solstice the sun must decrease.
John is the one foretold in Isa 40:3 “Prepare ye the way of the LORD”. His unique role is to precede Christ.
John the Baptist said this of Christ:Jhn 3:30
He must increase, but I [must] decrease.
Jesus, the light of the world, was born on the December solstice, at which time the sun must increase.