Normally a transfer forwarded to the XCOM Server (called a scheduled transfer) is processed immediately. XCOM provides two parameters which allow to specify a specific day and time at which the transfer is to be processed.
These parameters are STARTDATE and STARTTIME and are specified as Parameters in SYSIN01. You can specify day and time in the following formats:
STARTDATE=yyyymmdd (20151231 represents Dec. 31st, 2015)
STARTDATE=yyddd (Julian date, 16001 represents the first day of 2016)
STARTDATE=+nnn (nnn days from today, nnn in the range from 0 to 999)
STARTTIME=hhmm (1300 represents 1 pm)
STARTTIME=+hhmm (+0330 represents start in three and a half hour)