Qualifies every-absolute-time by specifying the time of day at
    which the transfer should occur. This parameter is optional.
    If you specify DAY, WEEK, or MONTH, but do not specify an at-
    time, Replication Option uses the time of day of the initial
    transfer. In the case of a list of weekdays, the at-time for
    each day can be specified. If the at-time for any weekday is not
    specified, the default is the time used for the previous entry in
    the list. For the first entry in the list, the time of day of the
    initial transfer is used, if none is specified.