https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512633#M218526 I can not find the timezone in /usr/lib/tztab for GMT without Daylight Savings Time.<BR /><BR />Thanks!<BR /> Mon, 28 Mar 2005 07:09:47 GMT MA Qiang 2005-03-28T07:09:47Z https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512633#M218526 I can not find the timezone in /usr/lib/tztab for GMT without Daylight Savings Time.<BR /><BR />Thanks!<BR /> Mon, 28 Mar 2005 07:09:47 GMT https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512633#M218526 MA Qiang 2005-03-28T07:09:47Z https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512634#M218527 Use set_parms timezone.<BR />It has the non-daylight options.<BR />You can also specify a custom timezone if needed. Mon, 28 Mar 2005 07:37:30 GMT https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512634#M218527 Chris Watkins_1 2005-03-28T07:37:30Z https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512635#M218528 GMT0 Mon, 28 Mar 2005 07:37:45 GMT https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512635#M218528 Jdamian 2005-03-28T07:37:45Z https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512636#M218529 Can I use GMT? Mon, 28 Mar 2005 19:04:26 GMT https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512636#M218529 MA Qiang 2005-03-28T19:04:26Z https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512637#M218530 HP-UX keeps time as GMT. When you login, the GMT time (more accurately known as UTC time) is translated by the setting of TZ. So you can set the TZ variable for all users by editing the file: /etc/TIMEZONE which looks like this:<BR /> <BR />TZ=EST5EDT<BR />export TZ<BR /> <BR />Change it to read:<BR /> <BR />TZ=GMT<BR />export TZ<BR /> <BR />and now your local time will be displayed and interpreted as GMT.<BR /> <BR />NOTE: HP-UX is somewhat unique in handling timezones. Look at the manpage for tztab (and also look at the file: /usr/lib/tztab) to see how it it can be customized. HP-UX never changes time for Dalight Saving, the system libraries only change the representation of time based on TZ. This is quite a feature because any user from anyplace in the world can see the server's time in their local timezone. The user's timestamps for file changes will match local time as well as date reporting the local time. All the user has to do is export TZ in their local .profile and presto! local time. You can demonstrate this with these commands:<BR /> <BR />date<BR />TZ=GMT date<BR />TZ=EST5EDT date<BR />TZ=XYZ1 date<BR />TZ=ABC-1 date<BR /> <BR />Now you'll notice that timezones XYZ and ABC are not defined in tztab. You can actually define your own timezone as well as any Daylight Saving you'd like to use. The details are a bit hidden: man environ<BR /> Mon, 28 Mar 2005 22:11:03 GMT https://community.hpe.com/t5/operating-system-hp-ux/how-to-set-the-timezone-without-daylight-savings-time/m-p/3512637#M218530 Bill Hassell 2005-03-28T22:11:03Z