Bus data conversion device and time keeping and time service control method thereof

The invention provides a bus data conversion device and a time keeping and time service control method thereof, and the bus data conversion device comprises a first protocol chip which is electrically connected with superior equipment, the first protocol chip is configured to be used for receiving first time data sent by superior equipment and acquiring a first time mark corresponding to the first time data; the control module comprises an acquisition unit, the acquisition unit is electrically connected with the first protocol chip, and the acquisition unit is configured to be used for acquiring the second time mark and reading the first time data and the first time mark; the first operation unit is electrically connected with the acquisition unit, and the first operation unit is configured to be used for calculating to obtain second time data corresponding to the second time mark; during use, superior equipment issues the first time data to the device, and the device compensates the first time data, so that