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The timezone is set to "CET" but date displays CEST

$ echo TZ
CET
$ date
Tue Apr 16 15:56:57 CEST 2013

Noticed the timezone on another similar system is "CET0" (not sure what the 0 means here!). But date displays the expected timezone:

$ echo $TZ
CET0
$ date
Tue Apr 16 15:51:26 CET 2013

So changed the timezone using chtz CET0 and rebooted. But date now displays UTC!

$ echo $TZ
CET0
$ date
Tue Apr 16 13:49:39 UTC 2013

Whats going on? How to set the timezone on AIX correctly?

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migrated from stackoverflow.com Apr 16 '13 at 15:26

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1  
CET == Central European Time, CEST == Central European Savings Time during the (approximately) "not winter" months... Not sure what CET0 is... – twalberg Apr 16 '13 at 14:46
    
@twalberg: surprisingly it's called Central European Summer Time, even though the S in DST means Saving :) – 0xC0000022L Aug 10 '15 at 8:29

Does your AIX install have the smitty package?
Navigate through the menus:
System Environments -> Change/Show Date and Time -> Change Time Zone Using System Defined Values
Find whatever timezone is closest to you. I'm in America/New_York

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