Traveler's Day is the main holiday for the Church of the Journey. Sundown on the first day of a new orbit (New Year's basically, January 1 on Earth). Due to the variety of orbital periods, it's different for every planet and not a single standardized day. It's a metaphorical celebration of the beginning of a new journey. The devout usually meet at a church or gathering place and go on a symbolic pilgrimage through the night to a new destination.