An annual holiday around the winter solstice that is celebrated by Atheists. For this holiday, gifts are exchanged out of goodness and out of love, and families come together. Similar to the Christian holiday, Christmas, minus the religious aspect.

Also celebrated by Agnostics.

Solarpunk is a movement focused on a positive, ecological vision for a future where technology is used for human-centric and ecocentric purposes. It is a literary, artistic and aesthetic sub-genre and is also closely tied to eco-political activism. Solarpunk narratives have a distinctly positive and utopian foundation in contrast to the often dystopian visions found within other "punk" science fiction genres.

A holiday created for Atheists by author Kevin Moyers in his book "Brain Farts", which was published on May 15, 2009. Atheistmas is to be celebrated annually on August 11.