SERSERVC requires the local network time to be synchronized with server time on the host. Time zone differences of an integer number of hours are acceptable. However, the minutes and seconds (mm:ss) on the local network clock may not differ by more than 59 seconds from the minutes and seconds on the host clock.
Verifying Host Clock Time
To verify that local network time is synchronized with server time on the host, do the following:
From a Web browser running on the local network, type
http://ip:port/?TIME
where
ip is the IP address assigned to the LPAR where SERNET resides
port is the port number assigned to the exclusive use of SERSERVC
You should receive the response hh:mm:ss, which is the time on the mainframe where SERSERVC is running.
Discard the hours and compare the minutes and seconds on the host with the minutes and seconds reported on your local network. If a difference greater than 59 seconds is found, your local network time must be synchronized to the host.
The mainframe time is considered correct because its clock is built in at manufacture and cannot be changed.