Method and device for waking up operating system, terminal and storage medium

The embodiment of the invention discloses a method and device for waking up an operating system, a terminal and a storage medium, belongs to the technical field of computers. The embodiment of the invention comprises the following steps of acquiring first starting moment; wherein the first starting moment is the starting moment of a precise alarm clock; when the second starting moment and the first starting moment meet the preset relations, starting a motor; and adjusting the second starting moment to the first starting moment, with the second starting moment being the starting moment of the first batch of alarm clocks, and when a system moment reaches the first starting moment, waking up the operating system and executing a task corresponding to the precise alarm clock and tasks corresponding to a first batch of alarm clocks through the operating system. According to the embodiment of the invention, the starting time of the first batch of alarm clocks can be adjusted to the starting time of the precise alarm