[Dev] Timezones/Recurrence/Sharing

[Alec Flett]

Jeffrey Harris wrote:

>Basically, on Windows, do we use the Win32 timezone definitions (good,
>consistent human readable names for timezones, variable cross platform
>behavior), or a zoneinfo database (then it's unclear what human readable
>label to use for the local timezone, since Windows' label for local time
>won't uniquely match an entry in the zoneinfo database).
>
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I think we do need a list of human-readable timezones in the current 
language, and I don't think we want to be maintaining that list 
ourselves.. hence it would be best if we could rely on the system for 
this list. Seems like the tricky part is mapping any particular system 
timezone into a language that we can understand. I mean, do we, 
chandler, need to know or deal with daylight savings? Can we just 
initialize python's timezone object to from the system data?

When you say "variable cross platform behavior" what exactly do you 
mean? If the same information can be culled from each system, then we 
should be pretty consistent across platforms, even if Windows describes 
a particular timezone with different english text (which would be fine IMO)

Of course, I have no idea how ICU handles timezones, and it might be 
helpful to understand what we can get from it.

Alec

>For Cosmo I don't think you need to worry about the local timezone, so
>you should probably use a zoneinfo db.
>
>Sincerely,
>Jeffrey
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