The start and end dates for daylight savings time (summer time) for all timezones are correct at the time of publishing. However, European timezones are being reviewed by the European Union and some of these start and end dates might change. The correct algorithm for these dates can be set in timezone.stz, which is located in /usr/lib/nls/msg/lang/sa, where lang is one of the following directories: english, french_france.8859, or german_germany.8859.
To set the timezone rules for daylight savings time correctly, edit each of the language specific timezone files (above) and change the following lines: in the ``gmt:'' section from:
SUMMER_TOO =GMT0BST,M3.5.0/1,M10.5.0/1In the ``europe_west:'' section from:
SUMMER_TOO =WET0WETDST,M3.5.0/1,M10.5.0/1In the "europe_middle:" section from:
SUMMER_TOO =MET-1METDST,M3.5.0/1,M10.5.0/1Then, run the scoadmin System Time Manager, and select Change Timezone from the Time menu. Select your correct timezone, click on OK and exit the manager.