tz file format

russ russell.sayers at gmail.com
Tue Jun 9 05:00:41 UTC 2009


Thanks for the info.

If there is no corresponding rule - how do you know when daylight/summer
time starts/finishes?

Russ

On Sun, Jun 7, 2009 at 3:20 PM, David Patte <dpatte at relativedata.com> wrote:

> The line means
>
> Until Feb 1917, add 10h offset to get standard time, and 1 more hour for
> local wall time (EST). This shortcut represents "daylight/summer' time,
> without having to use a rule record.
>
> David Patte
> Relative Data, Inc.
>
>
> russ wrote:
>
>> Hi,
>>
>> I hope i'm not wasting your time.  I'm attempting to read the tz database
>> into a c# application, and I'm not sure how to interpret this entry:
>>
>> Zone Australia/Hobart    9:49:16    -    LMT    1895 Sep
>>            10:00    -    EST    1916 Oct 1 2:00
>>            10:00    1:00    EST    1917 Feb
>>            10:00    Aus    EST    1967
>>            10:00    AT    EST
>>
>> What is the significance of the "1:00" on the row ending in "1917 Feb".
>>  Do I just add this to the 10:00 offset?
>>
>> Thanks,
>> Russell
>>
>>
>>
>
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