What are the hours of operation for LongHorn Steakhouse®? LongHorn Steakhouse® locations are open seven days a week. We open for lunch at 11:00 a.m. and begin serving dinner at 4:00 p.m. Our normal closing time Sunday through Thursday is 10:00 p.m. while on Friday and Saturday, we stay open until 11:00 p.m. Please note that closing hours may vary by region so check with your local LongHorn Steakhouse® to be sure.