/AFTER=time /NOAFTER Requests that the job be held until after a specific time. If the specified time has passed already, the job is processed immediately. You can specify time as either absolute time or as a combination of absolute and delta times. For complete information on specifying time values, see the OpenVMS User's Manual or the online help topic Date. In an OpenVMS Cluster, a batch job submitted to execute at a specific time may begin execution a little before or after the requested time. This occurs when the clocks of the member systems in the OpenVMS Cluster are not synchronized. For example, a job submitted using the DCL command SUBMIT/AFTER=TOMORROW may execute at 11:58 P.M. relative to the host system's clock. This problem can occur in a cluster even if a job is run on the same machine from which it was submitted, because the redundancy built into the batch/print system allows more than one job controller in the cluster to receive a timer asynchronous system trap (AST) for the job and, thus, to schedule it for execution. Moreover, this behavior is exacerbated if the batch job immediately resubmits itself to run the next day using the same SUBMIT command. This can result in having multiple instances of the job executing simultaneously because TOMORROW (after midnight) might be only a minute or two in the future. A solution to this problem is to place the SUBMIT command in a command procedure that begins with a WAIT command, where the delta-time specified in the WAIT command is greater than the maximum difference in time between any two systems in the cluster. Use the SHOW TIME command on each system to determine this difference in time. Use the SYSMAN command CONFIGURATION SET TIME to synchronize clocks on the cluster. For complete information on the SYSMAN command CONFIGURATION SET TIME, see the HP OpenVMS System Management Utilities Reference Manual.