[Wine] Re: Lotus Notes and Daylight Saving Time

Duane Clark fpga at pacbell.net
Thu Mar 22 12:40:08 CDT 2007

Goesta Smekal wrote:
> Hi Folks,
>    how do you handle the change from standard time to daylight saving time?
>    We are using LotusNotes 6.5.1 and Wine 20041019 on Kubuntu 5.10 
> Breezy Badger. This is the combination where we experienced the least 
> amount of Bugs.
>    Our hosts run UTC on the hardwareclock and live in the timezone 
> Europe/Vienna, which will change from CET to CEST on sunday.
>    Tests have shown, that calendar entries will get shifted one hour 
> after DST started. If you open an entry there is an info, that the event 
> is located in a different timezone.
>    From a Windows point of view this is perfectly normal, because 
> Windows changes the hwclock to the new version of localtime on every DST 
> event. It doesn't change the timezone it lives in because there is no 
> need to.
>    Linux on the other hand takes care about DST in software. (compare 
> http://tldp.org/HOWTO/TimePrecision-HOWTO/index.html )
>    And so LotusNotes gets confused. You can even create the time shift 
> effect, if you change the timezone using tzconfig on the fly.
>    This is very annoying and I cannot imagine there is no viable 
> solution out there ...

I am a bit confused. I assume that this worked correctly in previous 
years when the time shifted. So I assume this is a problem where Linux 
has been updated so that it knows the new time change dates, but Wine is 
still using the old ones. Does that sound right?

I don't think anyone here is going to be able to help with Wine from 
2004, so I think you are going to need to find out where Wine from that 
vintage keeps the timezone info, and modify it. I know that MS provides 
the utility tzedit.exe for changing the timezone info in Windows2k. 
Maybe it will work on Wine?

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