Replication Server 15.5 lets you schedule replication tasks.
For example, you can report on a specific state of the replicate database while the replicate database is not receiving data from the primary database. You can schedule replication to happen only during specific night hours, so that the processing of the next day does not change the replicate database, and reporting can occur on the data from the previous day. You can do this by creating schedules to suspend and resume connections to the replicate database at specific times of the day. The schedules you create are stored in the rs_schedule and rs_scheduletxt system tables.
See “Scheduling replication tasks” in Chapter 13, “Scheduling Replication Tasks” in the Replication Server Administration Guide Volume 1 and Chapter 8, “Replication Server System Tables” in the Replication Server Reference Manual.