/MODIFIED[=time]
    Selects files according to the dates on which they were last
    modified.
    This qualifier is relevant only when used with the /BEFORE or the
    /SINCE qualifier. In addition, do not use /MODIFIED with /BACKUP
    or /EXPIRED.
    If you omit time, TODAY is used. For more information on time
    specifications, see the OpenVMS User's Manual.