(Newser) – McDonald's says offering breakfast around the clock helped jolt its sales. Sales at the world's biggest hamburger chain rose 5.7% in the US for the final three months of 2015, boosted by unseasonably warm weather and the launch of an all-day breakfast menu in October. Despite the encouraging finish to the year, McDonald's has a long way to go, the AP reports. For all of 2015, US customer visits fell 3% at established McDonald's locations. That followed a 4.1% drop the previous year. Guest counts declined globally as well during the period.

McDonald's, which has more than 36,000 locations around the world, is working to turn around its business under CEO Steve Easterbrook, who will mark one year on the job in March. The company has conceded that it failed to keep up with changing tastes, and that order speed and accuracy suffered as its menu grew more expansive. Easterbrook says McDonald's will keep momentum going by focusing on areas like improving order accuracy and a recently launched mobile app. In early January, McDonald's also introduced a "McPick 2 for $2" menu intended to draw bargain hunters. (So far, the McChoco Potato is only available in Japan.)

