From: Pulbere, Alexandru [mailto:Alexandru.Pulbere@cognos.com] Sent: Thursday, August 05, 2004 6:56 PM
(my copy).
That change isn't necessary, since the Rule lines say that China last used DST in 1991, so zic can deduce that no transitions occurred after 1991. For example, here's what I get if I run the command "zdump -v Asia/Shanghai | tail -n 6" without your change: Asia/Shanghai Sat Apr 13 15:59:59 1991 UTC = Sat Apr 13 23:59:59 1991 CST isdst=0 Asia/Shanghai Sat Apr 13 16:00:00 1991 UTC = Sun Apr 14 01:00:00 1991 CDT isdst=1 Asia/Shanghai Sat Sep 14 14:59:59 1991 UTC = Sat Sep 14 23:59:59 1991 CDT isdst=1 Asia/Shanghai Sat Sep 14 15:00:00 1991 UTC = Sat Sep 14 23:00:00 1991 CST isdst=0 Asia/Shanghai Mon Jan 18 03:14:07 2038 UTC = Mon Jan 18 11:14:07 2038 CST isdst=0 Asia/Shanghai Tue Jan 19 03:14:07 2038 UTC = Tue Jan 19 11:14:07 2038 CST isdst=0