A method for implementing cross-time domain consistency in a distributed system including a plurality of application servers and one or more database servers, both related to services in service simulation, comprising: synchronizing times of the plurality of application servers according to a target time; obtaining, through calculation, a time offset between the target time and a time of a database server of the one or more database servers, wherein obtaining the time offset comprises: acquiring the time of the database server, and subtracting the time of the database server from the target time to obtain the time offset; receiving, at the plurality of application servers, the time offset; and generating, by the plurality of application servers, database operation instructions configured to be performed at the database server of the one or more database servers and including time functions, wherein generating the database operation instructions includes modifying, by the plurality of application servers, according to the time offset, all time functions of the time functions in a database operation instruction of the database operation instructions, the modified time functions related to the services in the service; simulation performed with the database operation instructions generated by the plurality of application servers, wherein modifying is performed by adding the time offset to all the time functions in the database operation instruction from the database operation instructions to obtain a modified time and to implement cross-time domain consistency in the distributed system; and sending, by an application server from the plurality of application servers, the database operation instruction with the modified time functions to the database server of 2. the one or more database servers for execution. synchronizing times of the plurality of application servers according to a target time; obtaining, through calculation, a time offset between the target time and a time of a database server of the one or more database servers, wherein obtaining the time offset comprises: acquiring the time of the database server, and subtracting the time of the database server from the target time to obtain the time offset; receiving, at the plurality of application servers, the time offset; and acquiring the time of the database server, and subtracting the time of the database server from the target time to obtain the time offset; receiving, at the plurality of application servers, the time offset; and generating, by the plurality of application servers, database operation instructions configured to be performed at the database server of the one or more database servers and including time functions, wherein generating the database operation instructions includes modifying, by the plurality of application servers, according to the time offset, all time functions of the time functions in a database operation instruction of the database operation instructions, the modified time functions related to the services in the service; simulation performed with the database operation instructions generated by the plurality of application servers, wherein modifying is performed by adding the time offset to all the time functions in the database operation instruction from the database operation instructions to obtain a modified time and to implement cross-time domain consistency in the distributed system; and sending, by an application server from the plurality of application servers, the database operation instruction with the modified time functions to the database server of 2. the one or more database servers for execution. modifying, by the plurality of application servers, according to the time offset, all time functions of the time functions in a database operation instruction of the database operation instructions, the modified time functions related to the services in the service; simulation performed with the database operation instructions generated by the plurality of application servers, wherein modifying is performed by adding the time offset to all the time functions in the database operation instruction from the database operation instructions to obtain a modified time and to implement cross-time domain consistency in the distributed system; and sending, by an application server from the plurality of application servers, the database operation instruction with the modified time functions to the database server of 2. the one or more database servers for execution.