Hello and well-met, fellow traveler, and happy Durin's Day!
Monday, the tenth of December, is the first day of the dwarves' new year ~ being the first day of the last moon in Autumn, just before winter. Dwarves call their new year's day, "Durin's Day" if the sun and moon are in the sky together. By happy circumstance, the moon will rise on Monday around 9:00 in the morning, and not set until 4:30 in the afternoon.
Huzzah! Happy Durin's Day to all!