/sys$common/syshlp/NCLHELP.HLB  —  update  dtss
    Gradually adjusts the clock on the specified server node to a new
    time, beginning at the time specified by the Time argument.

    update [node node-id] dtss time [absolute-time]

    Example:

    update dtss time 1996-12-30-11:24:00.000-05:00I02.000
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