Timezone for Shanghai in China

[François Brugère]

Hello all,

Does anyone know the timezone for Shanghaï ?
Is TZ parameter CST is right ?

Thanks for your help.

[Joseph Loo]

hi,

refer to this:

http://www.timeanddate.com/worldclock/timezone.html?n=237

regards.

[Borislav Perkov]

Hi François,

In /usr/lib/tztab CST is Central Standard Time for US and Canada. There is no abreviation for China time. Shanghai is in China Coast Time but it is not in the file.

Regards,
Borislav

[melvyn burnard · Accepted solution]

CST is for Canada, as far as I can tell. I believe that Shanghai is UTC+8 (8 hours ahead of UTC or GMT), and that the Australian timezone of Western Australia
See
http://www.timeanddate.com/worldclock/results.html?query=shanghai

[Arunvijai_4]

http://www.worldtimeserver.com/current_time_in_CN.aspx
CST is perfect.

-Arun

[Guy Humphreys]

Hi,

Shanghai is UTC +8 or in the timezone called China time. this is known as CST but don't get the other CSTs mixed up with it

Central Standard Time (Americas) UTC -6
Central Standard Time (Australia) UTC +9:30

HTH
Guy

[melvyn burnard]

Just looked further, it seems there IS a Tz for China known as CST.
As this is not in the tztab file, you may have to create your own entry if there are any time changes for daylight Savings, but it seems there may not be.

South Africa also has no DST, an dthey have a simple entry in /usr/lib/tztab :
# South Africa Standard Time
SAST-2
0 1 1-7 3 1985-2038 0 SAST-2

You could put in:

# China Standard Time
0 1 1-7 3 1985-2038 0 CST-8


and use CST-8 as your timezone

[François Brugère]

As there is no daylight saving time in China, I set the TZ parameter in /etc/TIMEZONE file to GMT-8.

Thanks for your many answers.

Francois.

[Don Mallory]

Just for reference, there is no difference for any timezones in China.

They don't have daylight savings, and the whole country is on the same time. So it doesn't matter whether you are in Kunming in western China or Tsingtao on the far eastern coast.

(I lived ~ 150km southeast of Shanghai for 2 years...)

We always just set everything as UTC+8.

On the bright side, the HP Shanghai offices are pretty responsive and the CE's were pretty good out there.

[François Brugère]

Thanks for your answer Dan. My colleague in China ask me why it's not GMT+8 instead GMT-8 as I proposed.

I tested the two values and it seems that the good one is GMT-8 and not GMT+8. Is somebody knows why ?

root@r02tekpu:/root# date -u
Fri Nov 4 08:08:18 UTC 2005
root@r02tekpu:/root# export TZ=GMT+8
root@r02tekpu:/root# date
Fri Nov 4 00:08:29 GMT 2005
root@r02tekpu:/root# export TZ=GMT-8
root@r02tekpu:/root# date
Fri Nov 4 16:08:51 GMT 2005
root@r02tekpu:/root#

Thanks for your help.

[Muthukumar_5]

Refer this:

http://www.csgnetwork.com/timezncvt.html

-Muthu

[François Brugère]

Finally, the answer came from HP's support. With HP-UX, the TZ value should be EAT-8 for China timezone.

Regards, Francois.

[Arunvijai_4]

You can close this thread if it is resolved.

-Arun

[François Brugère]

.