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I am trying to use a project depending on ZTimestamp on windows and I get an error saying that I need to initialize the info location of ZTimeZone myself via #zoneInfoLocation:.

I don't know much about location management on the OSs so I don't really know what I should set. Maybe the comments/error could explain a little to users what they should do or give a link to a Wikipedia explanation.

Don't we make the same mistake in #localPrintString as DateAndTime, namely by using the current local offset instead of the (possibly historical) local offset of aZTimestamp?

I assume you're familiar with this issue, but I described it more in depth here and here if it helps.

I can't think of a great way to solve this because IIUC there is not a VM primitive to get the timezone in an abstract way (e.g. ID).

Possible solutions

• At minimum, a method comment with the limitation might be helpful
• Is there a reliable cross-platform way to get the timezone ID or similar? Maybe a new primitive is in order. This would pave the way to fix the core system and all libraries.
• Could the local timezone be optionally set/cached by ZT for the image? That of course would not cover every case, but at least it would give people the option
• Maybe this method should simply be removed since there's no easy and reliable way to implement it.

This expression gives an error:

(ZTimezone id: 'Etc/UTC') offsetForTimestamp: DateAndTime now.

Because a UTC timezone has zero transmissions. I get this error when reading TIMESTAMP WITHOUT TIME ZONE columns using P3Client from a database with UTC as the server timezone.