|Planet MVS User Experiences Convert to GMT|
|2000-02-21||I wanted to check out what user applications saw for the time, so I created a jobstream gettime.txt which compiles and executes user-type programs using Assembler, COBOL, PL/I, etc. Check out the gettime job output. As expected, all High Level Languages got the expected time and Assembler only got the GMT time using STCK. I nicked one of JES2's routines to convert the GMT to local time.|
|2000-02-24||A guy pointed out that a Red Book would help: S/390 Time Management and IBM 9037 Sysplex Timer, SG24-2070-00.|
|2000-04-02||We went production on GMT time on the weekend of the
Day Light Savings time change.
No problems found. Our 'SYS1.PARMLIB(CLOCKxx)' member was changed to have "TIMEZONE W.00.00.00" changed to "TIMEZONE W.06.00.00". We set the HMC time to Dallas Tx (US CST) time + 6 hours.