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Date:	Sat, 6 Jan 2007 16:51:34 -0800
From:	"Steven Levine" <steve53@earthlink.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: TZ parameter

Content Type: text/plain

In <20070106134626-51174-7@scoug.com>, on 01/06/07
at 01:46 PM, "Robert Blair" said:

>Parameter 2 through 5 are for going onto daylight time and parameters 6
>to 9 are going back to standard time. Parameter 10 is the change betwee=
n
>standard time and daylight time. So my understanding of it is in the
>spring we go from 1am to 2am at 1am, which is why I think p5 should be
>3600. In the fall at 2am we go back to 1am and repeat the 1 o'clock hou=
r
>again, hence 7200.

I actually misread your first post and replied poorly as a result. IAC, =
I
would say 7200 is correct for the start of DST. Google seems to agree
with me. Here's a link that talks about the old changeover dates and
times

http://webexhibits.org/daylightsaving/b.html

and one with the new dates

http://www.energy.ca.gov/daylightsaving.html

Steven

--
----------------------------------------------------------------------
"Steven Levine" MR2/ICE 2.67 #10183 Warp/eCS/DIY=
/14.103a_W4
www.scoug.com irc.fyrelizard.com #scoug (Wed 7pm PST)
----------------------------------------------------------------------
=

=

>> SET TZ =3D SSS =
>
h =

+ : m =

: s =

=

> =
><
DDD =

,sm,sw,sd,st,em,ew,ed,et,shift =

=

=

The values for the TZ variable are defined below. The default values giv=
en are for the built-in "C" locale defined by the ANSI
C standard.

=

Table 1. TZ Environment Variable Parameters =

=

VARIABLE DESCRIPTION DEFAULT V=
ALUE
=

SSS Standard-timezone identifier. It must be EST =

three characters, must begin with a letter, =

and can contain spaces. =

=

h, m, s The variable h specifies the difference (in 5 =

hours) between the standard time zone and =

coordinated universal time (CUT), formerly =

Greenwich mean time (GMT). You can =

optionally use m to specify minutes after =

the hour, and s to specify seconds after =

the minute. A positive number denotes time =

zones west of the Greenwich meridian; a =

negative number denotes time zones east of =

the Greenwich meridian. The number must be =

an integer value. =

=

DDD Daylight saving time (DST) zone identifier. EDT =

It must be three characters, must begin =

with a letter, and can contain spaces. =

=

sm Starting month (1 to 12) of DST. 4 =

=

sw Starting week (-4 to 4) of DST. Use nega- 1 =

tive numbers to count back from the last =

week of the month (-1) and positive numbers =

to count from the first week (1). =

=

sd Starting day of DST. 0 =

0 to 6 if sw !=3D 0 =

1 to 31 if sw =3D 0 =

=

st Starting time (in seconds) of DST. 3600 =

=

em Ending month (1 to 12) of DST. 10 =

=

ew Ending week (-4 to 4) of DST. Use negative -1 =

numbers to count back from the last week of =

the month (-1) and positive numbers to =

count from the first week (1). =

=

ed Ending day of DST. 0 =

0 to 6 if ew !=3D 0 =

1 to 31 if ew =3D 0 =

=

et Ending time of DST (in seconds). 7200 =

=

shift Amount of time change (in seconds). 3600 =

=

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