Clock time service method and device and medium

The invention discloses a clock time service method and device and a medium, and is applied to the field of communication, and the method comprises the steps: receiving 5G time service information and satellite time service information, and obtaining a first difference value between the 5G time service information and the satellite time service information, the first difference value being a difference value of current information or a difference value predicted according to historical information. As the precision of 5G air interface time service is low and is only in the order of hundreds of nanoseconds or 1 microsecond, but the precision of satellite time service is about 20 ns, the time service time of the satellite time service information can be obtained by calculating or predicting the first difference value between the 5G time service information and the satellite time service information and correcting the 5G time service information according to the first difference value. And time service is perfor