Popular explanations reference the color of ink used to record store profits, slave auctions and a general feeling of doom among employees.

Here are the Black Friday store hours for some prominent national chains. Best Buy stores will be open from 6 a.m. to 10 p.m. Most Dick’s Sporting Goods stores will be open from 6 a.m. to 10 p.m. Home Depot stores will open at 6 a.m. and close at the store’s regular hours. Specific closing hours may vary by store.

Home Depot: Home Depot will be closed on Thanksgiving but will open at 6 a.m. on Black Friday. Lowes: Lowes will be closed on Thanksgiving, but will open at 6 a.m. on Black Friday. Ace Hardware: Each store is independently owned, but a majority of the stores will be closed on Thanksgiving.