To some extent that problem is unavoidable--1:00:01 "local" time is ambiguous, just as it is in Seattle. It can refer to either 01:00:01Z or 02:00:01Z, and the "date" command defaults to the second occurrence. To get the first occurrence, you have to use the -u switch and specify the time in UTC. J Andrew Lipscomb, CPA*ABV, ASA Decosimo Corporate Finance 900 Tallan Building 2 Union Square Chattanooga, TN 37402 423.756.7100 Fax 423.266.6671 www.dcf.decosimo.com -----Original Message----- From: Dafydd Rhys-Jones [mailto:D.Rhys-Jones@F5.com] Sent: Thu 30 August 2007 11:00 To: tz@lecserver.nci.nih.gov; tz@lecserver.nci.nih.gov Subject: RE: EU BST-->GMT issue If I manually set the time to 1 second after the reversion, it will set it to GMT, however, if I set it before the reversion time, and let it roll over said reversion time, it remains BST. The first command below shows where I set it before rolling over reversion time, and the command at the end after all the date checks showing reversion did not occur is the command where I set it +1 second over reversion time, and it does set it to GMT. Dafydd Dafydd Rhys-Jones | Software Test Engineer F5 Networks P 206.272.5555 F 206.272.5556 www.f5.com D 206.272.6280 M 206.335.1096 -----Original Message----- From: Andy Lipscomb [mailto:AndyLipscomb@decosimo.com] Sent: Thursday, August 30, 2007 7:52 AM To: tz@lecserver.nci.nih.gov Subject: RE: EU BST-->GMT issue That looks correct to me. The reversion occurs at 0100 UTC (which is to say 2am BST or 1am GMT), so wallclock times from 1am until 2am are repeated at the fall-back. J Andrew Lipscomb, CPA*ABV, ASA Decosimo Corporate Finance 900 Tallan Building 2 Union Square Chattanooga, TN 37402 423.756.7100 Fax 423.266.6671 www.dcf.decosimo.com Are there any known bugs revolving around the EU timezone not reverting from BST back to GMT? [root@server2 ~]# rm -f /etc/localtime ; ln -s /usr/share/zoneinfo/Europe/London /etc/localtime [root@server2 ~]# date Wed Aug 29 21:42:31 BST 2007 [root@server2 ~]# date -s "Sun Oct 26 00:59:59 2008" Sun Oct 26 00:59:59 BST 2008 [root@server2 ~]# date Sun Oct 26 00:59:59 BST 2008 [root@server2 ~]# date Sun Oct 26 01:00:01 BST 2008 [root@server2 ~]# date Sun Oct 26 01:00:02 BST 2008 [root@server2 ~]# date Sun Oct 26 01:00:03 BST 2008 [root@server2 ~]# date Sun Oct 26 01:00:04 BST 2008 [root@server2 ~]# date -s "Sun Oct 26 01:00:01 2008" Sun Oct 26 01:00:01 GMT 2008 Dafydd Rhys-Jones | Software Test Engineer F5 Networks P 206.272.5555 F 206.272.5556 www.f5.com D 206.272.6280 M 206.335.1096