In <[log in to unmask]> [log in to unmask] writes: > All this discussion concerning the setting and changing of the system > clocks has started me thinking and that in itself is scary. Here in Maryland, > USA we just sprang the clocks forward 1 hour to Eastern Daylight Time. Hey, they did here in Virginia too! ;-) > The only process we did was to run the utility SETCLOCK with the parm > of TIMEZONE=W4:00 The system clock moved immediately and the clock which > is read by Speedware also is correct. AND when I run the program > SHOWCLKS.PUBXL.TELESUP all looks good with GMT and MPE System Time and the > offset. But, the current value of Time Zone(TZ) variable is NOT ASSIGNED > > Am I missing something, why should we concern ourselves with the TZ value? > I do believe this has never been assigned and things seem fine. Here's what we do; we created a file in pub.sys called "tz". It's a one-line file; SETVAR TZ "EST5EDT" We then added a :XEQ TZ.PUB.SYS to all our system's option logon UDCs. also, our auto-changing timezone job (as posted on the list by Frank the other day) does the following (slightly modified from what was posted): !if hpday = 1 and hpmonth = 10 and hpdate > 24 then ! SETCLOCK TIMEZONE = W5:00 ! FILE TIMEFILE=TZ.PUB.SYS,OLD ! ECHO SETVAR TZ "EST5EST" > *TIMEFILE ! TELLOP ********************************************* ! TELLOP Changing the system clock to STANDARD TIME. ! TELLOP The clock will S L O W D O W N until ! TELLOP we have fallen back one hour. ! TELLOP ********************************************* !elseif hpday = 1 and hpmonth = 4 and hpdate < 8 then ! SETCLOCK TIMEZONE = W4:00 ! FILE TIMEFILE=TZ.PUB.SYS,OLD ! ECHO SETVAR TZ "EST5EDT" > *TIMEFILE ! TELLOP ********************************************* ! TELLOP Changing the system clock to DAYLIGHT TIME. ! TELLOP The clock jumped ahead one hour. ! TELLOP ********************************************* !endif That (in addition to setting the timezone offset in the clock) takes care of the TZ variable. Set it up once and never worry about it again. :-) -Chris Bartram (remove "nospam" from address to reply directly)