Charles Ellicott Commentary Numbers 29:6

"besides the burnt-offering of the new moon, and the meal-offering thereof, and the continual burnt-offering and the meal-offering thereof, and their drink-offerings, according unto their ordinance, for a sweet savor, an offering made by fire unto Jehovah." — Numbers 29:6 (ASV)

Beside the burnt offering of the month.— Better, of the new moon. (See Numbers 28:11, where the burnt offering of the beginning of the month is described.)