- tz - lists.iana.org

RE: Zoneinfo questions
by Olson, Arthur David Feb. 19, 1998

Feb. 19, 1998

Below are copies of a couple of 1989 letters on the history of the time zone software. These days Paul Eggert is doing the bulk of the maintenance work; the central repository remains at ftp://elsie.nci.nih.gov/pub. --ado ==============================================================

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FW: Zoneinfo questions
by Olson, Arthur David Feb. 19, 1998

Feb. 19, 1998

Note that Mark White is not on the time zone mailing list; any replies should include Mark. A copy of a letter from me to Mark should follow. --ado ---------- From: White, Mark[SMTP:Mark.White@COMPAQ.com] Sent: Tuesday, February 17, 1998 8:06 PM To: 'tz(a)elsie.nci.nih.gov' Subject: Zoneinfo questions Hi, I was interested in writing an article on the zoneinfo library and datafiles for an Australian UNIX magazine, was specifically interested in the following: 1. Who originally wrote the package 2. Who currently maintains it? Thanks and regards, Mark.White(a)Compaq.com +61 7 3218 3618 UNIX & Telecoms Marketing +61 7 3218 3650 (fax) Asia-Pacific Division

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Zoneinfo questions
by White, Mark Feb. 18, 1998

Feb. 18, 1998

Hi, I was interested in writing an article on the zoneinfo library and datafiles for an Australian UNIX magazine, was specifically interested in the following: 1. Who originally wrote the package 2. Who currently maintains it? Thanks and regards, Mark.White(a)Compaq.com +61 7 3218 3618 UNIX & Telecoms Marketing +61 7 3218 3650 (fax) Asia-Pacific Division

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FW: Palestine time
by Olson, Arthur David Feb. 17, 1998

Feb. 17, 1998

---------- From: amos@nsof.co.il[SMTP:amos@nsof.co.il] Sent: Sunday, February 15, 1998 7:48 AM To: tz(a)elsie.nci.nih.gov Subject: Palestine time In the asia file you include: > # Zone NAME GMTOFF RULES FORMAT [UNTIL] > Zone Asia/Gaza 2:17:52 - LMT 1900 Oct > 2:00 - EET 1957 May 10 > 2:00 EgyptAsia EE%sT 1967 Jun 30 > 2:00 Zion I%sT From 1917 until 1948/5/15, all of Palestine, including the parts now known as the Gaza Strip and the West Bank, was under British rule. Therefore the rules given for Israel for that period, apply there too. (Though I find the name "Zion" rather inappropriate -- why not just call it "Israel" or "Palestine"?) The Gaza Strip was under Egyptian rule between 1948/5/15 until 1967/6/5 (except a short occupation by Israel from 1956/11 till 1957/3, but no time zone was affected then). It was never formally annexed to Egypt, though. The rest of Palestine was under Jordanian rule at that time, formally annexed in 1950 as the West Bank (and the word "Trans" was dropped from the country's previous name of "the Hashemite Kingdom of the Trans-Jordan"). So the rules for Jordan for that time apply. Major towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and East Jerusalem. Both areas were occupied by Israel in June 1967, but not annexed (except for East Jerusalem). They were on Israel time since then; there might have been a Military Governor's order about time zones, but I'm not aware of any (such orders may have been issued semi-annually whenever summer time was in effect, but maybe the legal aspect of time was just neglected). The Palestinian Authority was established in 1993, and got hold of most towns in the West Bank and Gaza by 1995. I know that in order to demonstrate some manner of independence, they have been switching to summer time and back on a different schedule than Israel's, but I don't know when this was started, or what algorithm is used (most likely the Jordanian one). To summarize, the table should probably look something like that: Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996- ------------+-----------+-----------+-----------+----------- Israel | Zion | Zion | Zion | Zion West bank | Zion | Jordan | Zion | Jordan Gaza | Zion | Egypt | Zion | Jordan I guess more info may be available from the PA's web page (if/when they have one). -- Amos Shapir Paper: nSOF Parallel Software, Ltd. Givat-Hashlosha 48800, Israel Tel: +972 3 9388551 Fax: +972 3 9388552 GEO: 34 55 15 E / 32 05 52 N

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FW: Brazil can't decide on daylight savings
by Olson, Arthur David Feb. 17, 1998

Feb. 17, 1998

---------- From: Daniel C. Sobral[SMTP:dcs@gns.com.br] Sent: Sunday, February 15, 1998 9:23 AM To: tz(a)elsie.nci.nih.gov Subject: Brazil can't decide on daylight savings Ok, my previous patch had an error. Here is a newer and, hopefully, correct patch. -- Daniel C. Sobral (8-DCS) dcs(a)gns.com.br When it comes to helping you, some people stop at nothing. <</usr/src/share/zoneinfo/patch>> begin 600 patch M+2TM('-O=71H86UE<FEC82YO<FEG"5-U;B!&96(@,34@,3`Z-3,Z,C`@,3DY M.`T**RLK('-O=71H86UE<FEC80E3=6X@1F5B(#$U(#$P.C4R.C4T(#$Y.3@- M"D!`("TR-S`L."`K,C<P+#$R($!`#0H@4G5L90E"<F%Z:6P),3DY,PDQ.3DU M"2T)3V-T"5-U;CX],3$)(#`Z,#`),3HP,`E$#0H@4G5L90E"<F%Z:6P),3DY M,PEO;FQY"2T)2F%N"3,Q"2`P.C`P"3`)4PT*(%)U;&4)0G)A>FEL"3$Y.30) M,3DY-0DM"49E8@E3=6X^/3$U"2`P.C`P"3`)4PT*+5)U;&4)0G)A>FEL"3$Y M.38);6%X"2T)1F5B"5-U;CX],3$)(#`Z,#`),`E3#0HM4G5L90E"<F%Z:6P) M,3DY-@EM87@)+0E/8W0)4W5N/CTQ"2`P.C`P"3$Z,#`)1`T**U)U;&4)0G)A M>FEL"3$Y.38);VYL>0DM"49E8@E3=6X^/3$Q"2`P.C`P"3`)4PT**U)U;&4) M0G)A>FEL"3$Y.38);VYL>0DM"4]C=`E3=6X^/3$)(#`Z,#`),3HP,`E$#0HK M4G5L90E"<F%Z:6P),3DY-PEO;FQY"2T)3V-T"2`V"2`P.C`P"3$Z,#`)1`T* M*U)U;&4)0G)A>FEL"3$Y.3@);VYL>0DM"4UA<@D@,0D@,#HP,`DP"5,-"BM2 M=6QE"4)R87II;`DQ.3DX"6UA>`DM"4]C=`E3=6X^/3$)(#`Z,#`),3HP,`E$ M#0HK4G5L90E"<F%Z:6P),3DY.0EM87@)+0E&96()4W5N/CTQ,0D@,#HP,`DP M"5,-"B`-"B`C(%IO;F4)3D%-10D)1TU43T9&"5)53$53"49/4DU!5`E;54Y4 )24Q=#0H@(PT* ` end

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Palestine time
by amos＠nsof.co.il Feb. 15, 1998

Feb. 15, 1998

In the asia file you include: > # Zone NAME GMTOFF RULES FORMAT [UNTIL] > Zone Asia/Gaza 2:17:52 - LMT 1900 Oct > 2:00 - EET 1957 May 10 > 2:00 EgyptAsia EE%sT 1967 Jun 30 > 2:00 Zion I%sT From 1917 until 1948/5/15, all of Palestine, including the parts now known as the Gaza Strip and the West Bank, was under British rule. Therefore the rules given for Israel for that period, apply there too. (Though I find the name "Zion" rather inappropriate -- why not just call it "Israel" or "Palestine"?) The Gaza Strip was under Egyptian rule between 1948/5/15 until 1967/6/5 (except a short occupation by Israel from 1956/11 till 1957/3, but no time zone was affected then). It was never formally annexed to Egypt, though. The rest of Palestine was under Jordanian rule at that time, formally annexed in 1950 as the West Bank (and the word "Trans" was dropped from the country's previous name of "the Hashemite Kingdom of the Trans-Jordan"). So the rules for Jordan for that time apply. Major towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and East Jerusalem. Both areas were occupied by Israel in June 1967, but not annexed (except for East Jerusalem). They were on Israel time since then; there might have been a Military Governor's order about time zones, but I'm not aware of any (such orders may have been issued semi-annually whenever summer time was in effect, but maybe the legal aspect of time was just neglected). The Palestinian Authority was established in 1993, and got hold of most towns in the West Bank and Gaza by 1995. I know that in order to demonstrate some manner of independence, they have been switching to summer time and back on a different schedule than Israel's, but I don't know when this was started, or what algorithm is used (most likely the Jordanian one). To summarize, the table should probably look something like that: Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996- ------------+-----------+-----------+-----------+----------- Israel | Zion | Zion | Zion | Zion West bank | Zion | Jordan | Zion | Jordan Gaza | Zion | Egypt | Zion | Jordan I guess more info may be available from the PA's web page (if/when they have one). -- Amos Shapir Paper: nSOF Parallel Software, Ltd. Givat-Hashlosha 48800, Israel Tel: +972 3 9388551 Fax: +972 3 9388552 GEO: 34 55 15 E / 32 05 52 N

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Brazil can't decide on daylight savings
by Daniel C. Sobral Feb. 15, 1998

Feb. 15, 1998

Ok, my previous patch had an error. Here is a newer and, hopefully, correct patch. -- Daniel C. Sobral (8-DCS) dcs(a)gns.com.br When it comes to helping you, some people stop at nothing.

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FW: Brazil can't decide on daylight savings
by Olson, Arthur David Feb. 12, 1998

Feb. 12, 1998

---------- From: Daniel C. Sobral[SMTP:dcs@gns.com.br] Sent: Thursday, February 12, 1998 10:50 AM To: tz(a)elsie.nci.nih.gov Subject: Brazil can't decide on daylight savings This is a patch I submitted to FreeBSD regarding recent and very recent changes on Daylight Savings beginning and ending dates on Brazil. In 1997, the DS began on October 6. The stated reason was that because international television networks ignored Brazil's policy on DS, they bought the wrong times on satellite for coverage of Pope's visit. This year, the ending date of DS was postponed to March first to help dealing with the shortages of electric power. I was also told to send you any citations demonstrating the announcements dates, but I can't. The ending date was changed this week, I'm almost sure the announcement was made tuesday (it was being expected, and I was first notified of it through a backweb newspaper service). As for the change in 1997, I really don't recall any dates (besides the ones that have direct impact to me, being a sysadm, of course). The patch is attached. -- Daniel C. Sobral (8-DCS) dcs(a)gns.com.br Every program has (at least) two purposes: the one for which it was written and another for which it wasn't. <</usr/src/share/zoneinfo/patch>> begin 600 patch M*BHJ('-O=71H86UE<FEC82YO<FEG"5=E9"!&96(@,3$@,C$Z,#8Z,#D@,3DY M.`T*+2TM('-O=71H86UE<FEC80E7960@1F5B(#$Q(#(Q.C`V.C4X(#$Y.3@- M"BHJ*BHJ*BHJ*BHJ*BHJ*@T**BHJ(#(W,BPR-S<@*BHJ*@T*+2TM(#(W,BPR M-SD@+2TM+0T*("!2=6QE"4)R87II;`DQ.3DT"3$Y.34)+0E&96()4W5N/CTQ M-0D@,#HP,`DP"5,-"B`@4G5L90E"<F%Z:6P),3DY-@EM87@)+0E&96()4W5N M/CTQ,0D@,#HP,`DP"5,-"B`@4G5L90E"<F%Z:6P),3DY-@EM87@)+0E/8W0) M4W5N/CTQ"2`P.C`P"3$Z,#`)1`T**R!2=6QE"4)R87II;`DQ.3DW"6]N;'D) M+0E/8W0)(#8)(#`Z,#`),3HP,`E$#0HK(%)U;&4)0G)A>FEL"3$Y.3@);VYL M>0DM"4UA<@D@,0D@,#HP,`DP"5,-"B`@#0H@(",(a)6F]N90E.04U%"0E'351/ >1D8)4E5,15,)1D]234%4"5M53E1)3%T-"B`@(PT* ` end

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Brazil can't decide on daylight savings
by Daniel C. Sobral Feb. 12, 1998

Feb. 12, 1998

This is a patch I submitted to FreeBSD regarding recent and very recent changes on Daylight Savings beginning and ending dates on Brazil. In 1997, the DS began on October 6. The stated reason was that because international television networks ignored Brazil's policy on DS, they bought the wrong times on satellite for coverage of Pope's visit. This year, the ending date of DS was postponed to March first to help dealing with the shortages of electric power. I was also told to send you any citations demonstrating the announcements dates, but I can't. The ending date was changed this week, I'm almost sure the announcement was made tuesday (it was being expected, and I was first notified of it through a backweb newspaper service). As for the change in 1997, I really don't recall any dates (besides the ones that have direct impact to me, being a sysadm, of course). The patch is attached. -- Daniel C. Sobral (8-DCS) dcs(a)gns.com.br Every program has (at least) two purposes: the one for which it was written and another for which it wasn't.

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symlinks
by Olson, Arthur David Feb. 3, 1998

Feb. 3, 1998

We do indeed need an addition to #define HAVE_SYMLINK in private.h; I've added it. The peculiar #if (HAVE_SYMLINK - 0) compiles when HAVE_SYMLINK is undefined; it's the form used in many places in the code. Since the behavior of zic is being changed, a warning seems mandatory. Since there's been one reported challenge worldwide with the lack of symlinks over the last decade, I don't sense an urgent need to be able to disable the warning. --ado *** 7.46/private.h Tue Feb 3 09:20:01 1998 --- 7.47/private.h Tue Feb 3 09:20:01 1998 *************** *** 21,27 **** #ifndef lint #ifndef NOID ! static char privatehid[] = "@(#)private.h 7.46"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 21,27 ---- #ifndef lint #ifndef NOID ! static char privatehid[] = "@(#)private.h 7.47"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 46,51 **** --- 46,55 ---- #define HAVE_STRERROR 0 #endif /* !defined HAVE_STRERROR */ + #ifndef HAVE_SYMLINK + #define HAVE_SYMLINK 1 + #endif /* !defined HAVE_SYMLINK */ + #ifndef HAVE_UNISTD_H #define HAVE_UNISTD_H 1 #endif /* !defined HAVE_UNISTD_H */

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