[4] While there are no universally accepted ways to commemorate the holiday, modern celebrations typically involve a communal meal among a family or group.

The use of candles to symbolize reason, hope, compassion, and humanity has become widespread among those celebrating.

[7] HumanLight's origins stem from members of the New Jersey Humanist Network asking in the late 1990s how secular people could best participate in the December holiday season.

By 2010, there were at least thirty known public celebrations, and multiple secular organizations—including the American Humanist Association—had endorsed the holiday.

[14] The current symbol "depicts the light of the sun, and human figures celebrating with arms outstretched.

For example, although HumanLight Day is December 23, if that date in a particular year falls on a weekday, organizers can schedule the celebration on the previous weekend, if needed.

[20] Although there are no requirements, there are a wide variety of possible themes and events to include in a HumanLight ceremony or celebration.