TZ corrections

[Ken Pizzini]

On Tue, Apr 26, 2005 at 06:56:31PM -0500, Jesper Norgaard Welen wrote:
> In my home country Denmark, it seems that there is a superfluous rule
> for
> 2.nd of April 1945, which I suggest to delete:
> 
> Rule	Denmark	1940	only	-	May	15	 0:00	1:00
> S
> -Rule	Denmark	1945	only	-	Apr	 2	 2:00s	1:00
> S
> Rule	Denmark	1945	only	-	Aug	15	 2:00s	0
> -
> 
> Unles my interpretation is wrong, both before and after the rule takes
> effect in April 2, 1945, the time
> in Denmark would be GMT+2 (e.g. GMT+1 +1), or does it mean that time is
> GMT+3?

The rule (in its broader context) says, before 02:00 on 1945-04-02,
Denmark was 1 hour ahead of GMT, but at 02:00 it went to being 2 hours
ahead.

> GMT+3? As a side-question, I haven't been able to check this with any
> Time Zone Converter (the web version has a cutoff date of 1970). Is
> there
> any way to check this by a program, and which?

I used Gnu date to confirm the reading:
  $ TZ=Europe/Copenhagen date -d '1945-04-02 00:59:59 UTC'
  Mon Apr  2 01:59:59 CET 1945
  $ TZ=Europe/Copenhagen date -d '1945-04-02 01:00:00 UTC'
  Mon Apr  2 03:00:00 CEST 1945

		--Ken Pizzini