FYI, I'm not sure if you would call this a bug or not but I'm wondering why the GNU date command doesn't have the correct time adjustment for daylight savings from years past on its output when using an input date string to generate its output. It seems to have the current rules applied to all dates, i.e. in 2007 daylight savings starts second Sunday in March and ends the first Sun in November while in 2006 it should start on the first Sunday in April ending the last Sunday in October. I live in the Central Timezone, TZ=CST6CDT, and have found that the time adjustments for previous years don't line up to their proper dates. It doesn't seem like there is any daylight savings rules based on year. The site http://aa.usno.navy.mil/faq/docs/daylight_time.php has some reference to the rules I am talking about.
I am currently running GNU coreutils 6.9 with Cygwin on Windows XP version "CYGWIN_NT-5.1 1.5.24(0.156/4/2) 2007-01-31 10:57". The following commands shows dates when CST switches to CDT and back. $ export TZ=CST6CDT $ i=$(date --date="01/01/2005" +%s) $ while true; do date --date="1970-01-01 00:00:00 $i sec UTC"; ((i=$i+86400)); done Summary: Sun Mar 12 00:00:00 CST 2006 (should be Sun Apr 2 00:00:00 CST 2006) Mon Mar 13 01:00:00 CDT 2006 (should be Mon Apr 3 01:00:00 CDT 2006) Sun Nov 5 01:00:00 CDT 2006 (should be Sun Oct 29 01:00:00 CDT 2006) Mon Nov 6 00:00:00 CST 2006 (should be Mon Oct 30 00:00:00 CST 2006) Sun Mar 11 00:00:00 CST 2007 Mon Mar 12 01:00:00 CDT 2007 Sun Nov 4 01:00:00 CDT 2007 Mon Nov 5 00:00:00 CST 2007 What I got out of the above article the rules would be something like the following. 1974 starts Jan 6 ends last Sun in Oct 1975 starts Feb 23 ends last Sun in Oct 1976-1986 starts last Sun in Apr ends last Sun in Oct 1987-2006 starts first Sun in Apr ends last Sun in Oct 2007-???? starts second Sun in Mar ends first Sun in Nov Could someone shed some light on why maybe additional rules are not applied? Thanks, Richard Narum, Design/CAD Systems Engineer Applied Engineering, Inc. 1025 Airport Road Bismarck, ND 58504 Phone: 701-255-1137 Fax: 701-255-1046 www.ae-solutions.com -- _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
