To dynamically change the time zone, you can issue: CP SET TIMEZONE CST However, this is not a good practice from VM point of view. Another problem is that this may not correct the problem on your Linux side because Linux may ignore this change once it has started.
Also, from the look of your original message, it seems that you IPLed VM and set the correct time at IPL. If you issue the above command, your VM time may suddenly be off by one hour. Your best bet may be to correct your timezone information in the SYSTEM CONFIG file and re-IPL to make sure everyone is on the same page. -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Veencamp, Jonathon D. Sent: Monday, November 04, 2013 8:44 AM To: [email protected] Subject: Re: Daylight savings time issue You are correct. So my problem statement is that ZVM is showing CDT - and should not. Linux is showing CST. And even though Linux is set up to use UTC, the time offset is still off by one hour. I suspect that is due to ZVM showing CDT. How do I dynamically change zVM? (I'm googling, but you may be faster. :) ) Jon -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Aria Bamdad Sent: Monday, November 04, 2013 7:35 AM To: [email protected] Subject: Re: Daylight savings time issue Shouldn't you have switched to CST instead? We just started standard time, not daylight savings time.. -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Veencamp, Jonathon D. Sent: Monday, November 04, 2013 8:12 AM To: [email protected] Subject: Daylight savings time issue Good morning list, Does anyone have any quick advice? We are in Minnesota and have just switched to Daylight Savings. Someone IPL'd ZVM differently yesterday than on past IPL's. (TOD clock question answered yes). Now we are seeing the correct time in CMS in zVM (I think) but Linux is not showing daylight savings. ZVM query timezone Zone Direction Offset Status UTC ---- 00.00.00 Inactive GMT ---- 00.00.00 Inactive EDT West 04.00.00 Inactive EST West 05.00.00 Inactive CDT West 05.00.00 Active CST West 06.00.00 Inactive MDT West 06.00.00 Inactive MST West 07.00.00 Inactive PDT West 07.00.00 Inactive PST West 08.00.00 Inactive Ready; T=0.01/0.01 07:05:22 <-- This is correct. zLinux # date Mon Nov 4 06:05:35 CST 2013 <-- So CST is the issue. I verified that /etc/timezone is set to the same as /usr/share/zoneinfo/America/Chicago. Our TZ environmental variable is not set. Any advice? Thanks, Jon Veencamp ________________________________ The information contained in this e-mail message is intended only for the personal and confidential use of the designated recipient(s) named above. This message may be an attorney-client or work product communication which is privileged and confidential. It may also contain protected health information that is protected by federal law. 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Thank you. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ________________________________ The information contained in this e-mail message is intended only for the personal and confidential use of the designated recipient(s) named above. 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