Date: Wed, 02 Jan 2019 06:11:55 -0500 From: Subject: [VOICENWS] SW: TZSet version 09 ++ From the VOICE OS/2-eCS News Service http://www.os2voice dot org ++ From: peterDESPAM at DESPAMpmoylan dot org The latest version of TZSet can be fetched from ftp://ftp.pmoylan dot org/software/tzset09.zip This is a freeware program (source included) that adjusts the OS/2 clock such that the API call DosGetDateTime will return the correct time zone. (Without TZSet or some equivalent substitute, the time zone is always returned as "undefined".) The program also adjusts your time zone twice a year, unless you live in a place that does not use Daylight Saving time. BACKGROUND (some of this is conjecture): According to one document on the web (https://jdebp.eu/FGA/keeping-time-in-os2.html) the OS/2 clock was supposed to be set to International Atomic Time, with each process using a Posix TZ variable to define its own time zone. This perhaps explains why "undefined" is always returned as the time zone value. I have, however, never seen any OS/2 software that uses a TZ variable in Posix format. I therefore suspect a design change, to have one TZ string in CONFIG.SYS in non-Posix format, which would relieve programs of the need to duplicate the time zone calculation in every application. That change did not, however, go as far as having a time zone setting in the System Clock object. Of course, ports of Linux software would still be free to use their own TZ variable that superseded the one in CONFIG.SYS. Such programs would be free to ignore the time zone returned by DosGetDateTime. -- Peter Moylan mailto://peter at pmoylan dot org http://www.pmoylan dot org -- For a choice in the future of personal computing, Join VOICE - http://www.os2voice dot org [Moderator's note: All posts are sent without guarantee to the accuracy of the content. We try to verify details and URLs but this is an entirely volunteer run list, so 100% fact checking and the quality/useability of products announced here is impossible. If you respond to this post please remove the DESPAM from the poster's email addresses. Please do not send requests for information about a specific post to the moderator unless it is an update or I sent it. To submit news to this list please use the submission form at http://www.os2voice dot org/SubmitNews.html or send an email to "submit at os2voice dot org" To unsubscribe yourself from this list, send the following message to majormajor at os2voice dot org unsubscribe news end ]