/SINCE=[date-time]

    Specifies that only those events dated later than the stated date
    and time are to be selected for the report.

    You can use date-time to limit the report to those events dated
    later than the specified time. You can specify an absolute time,
    a delta time, or a combination of absolute and delta times. See
    the OpenVMS User's Manual for details on specifying times.

    If you omit a date and time, TODAY is used.