Most Walmart stores will be open 24 hours on Thanksgiving, but the holiday deals will start in the evening.
According to a Walmart spokesperson, being open all day has been tradition since 1988.
"We see ourselves similar to restaurants, gas stations, or airports," Sarah Spencer, a Walmart spokeswoman, told The Huffington Post. "We see it as a service to our customers."
The store's Black Friday deals begin at 6 p.m. on Thursday, November 27.
At that time, things like "Frozen" dolls and "Grand Theft Auto" video games be discounted. At 8 p.m. discounts on electronics like Samsung Smart HDTVs and Beats by Dr. Dre speakers will kick in. A third round of Black Friday sales will start at 6 a.m. on Black Friday.
Sam's Club stores, which are owned by Walmart, will be closed on Thanksgiving but will open at 7 a.m. on Black Friday.
Twenty-two million customers shopped at Walmart on Thanksgiving last year, according to the company.