8860ch08.fm Draft Document for Review September 23, 2019 1:27 am 9. The  Set date and time  window for initializing the time opens. Select one of the following  three items to initialize the time: – Use the configured External Time source to set date and time : You can set ETS  during the initializing time process. – Set date and time : Select this option when you set the date and time for CTS  manually. – Modify time by delta to set date and time : Select this option when you set the  current TOD of CTS for initializing the time and specify a delta from the TOD.  Figure 8-37 Set date and time We select  Use the configured External Time source to set date and time , and click  NEXT  to continue (Figure 8-37). Note:  Selecting  Use the configured External Time source to set date and time enables accurate setting of the initial time, so generally use this option. Chapter 8. Preparing for Sysplex and configuring Server Time Protocol  183