tz file format

russ russell.sayers at gmail.com
Tue Jun 9 05:08:18 UTC 2009


Forget I said that... I can see daylight time ran from 1-Oct-1916 to
28-Feb-1917.

Thanks,
Russ

On Tue, Jun 9, 2009 at 3:00 PM, russ <russell.sayers at gmail.com> wrote:

> 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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