Here's something that the boys (Ted Menks, et. al) cooked up in this
echo a while ago:

set Daytm=%{at}doy[4-%{at}eval[8-%{at}dowi[4-7-%_year]]-4-%_year].02
set Stdtm=%{at}doy[10-%{at}eval[32-%{at}dowi[10-31-%_year]]-%_year].02
set toDay=%{at}doy[%_date].%{at}right[2,0%_hour]

iff %toDay ge %Daytm .and. %toDay lt %Stdtm then
  set TZ=UTC+7
  echo TZ set for Pacific Daylight Savings Time (UTC + 7 hours)
else
  set TZ=UTC+8
  echo TZ set for Pacific Standard Time (UTC + 8 hours)
endiff

REM Or a more compact version (include first 3 set commands too):
REM set TZ=UTC+%{at}if[%toDay ge %Daytm .and. %toDay lt %Stdtm,7,8]


unset toDay Daytm Stdtm




jh -
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