-02 abbreviation for 'Atlantic/South_Georgia'

[curtp]

Hello,

I think this may be a configuration issue between our development and our production environments, but I'm not able to track it down.

We have a user who selected the 'Atlantic/South_Georgia' timezone. When the time zone is displayed, it is showing -02 for the abbreviation instead of GST which is what I'm getting in my development environment.

Here is the output from both environments showing the difference.

Local:
tz = TZInfo::Timezone.get('Atlantic/South_Georgia')
=> #<TZInfo::DataTimezone: Atlantic/South_Georgia>
tz.current_period
=> #<TZInfo::TimezonePeriod: #<TZInfo::TimezoneTransitionDefinition: #<TZInfo::TimeOrDateTime: -2524512832>,#<TZInfo::TimezoneOffset: -7200,0,GST>>,nil>
tz.current_period.abbreviation
=> :GST

Production:
tz = TZInfo::Timezone.get('Atlantic/South_Georgia')
=> #<TZInfo::DataTimezone: Atlantic/South_Georgia>
tz.current_period
=> #<TZInfo::TimezonePeriod: #<TZInfo::TimezoneTransitionDefinition: #<TZInfo::TimeOrDateTime: -2524512832>,#<TZInfo::TimezoneOffset: -7200,0,-02>>,nil>
tz.current_period.abbreviation
=> :"-02"

Any pointers on where I can look next?

[curtp]

Sorry for close/reopen. I think I've tracked it down to a difference between the content of /usr/share/zoneinfo/Atlantic/South_Georgia

Going to look into using the TZInfo::Data source instead of OS

[raelgc]

@curtp I'm facing a similar issue, where the abbreviation for the timezone is returned as integer instead of a string with the correct abbreviation (in my case, I want to see BRT for America/Sao_Paulo but I'm getting only -03).

How you forced to use TZInfo::Data? Just including tzinfo and tzinfo-data gems in bundler?

[curtp]

Unfortunately, we never did get it to work properly. It is still working off of the /usr/share/zoneinfo files and displaying whatever is contained within it.

[raelgc]

@curtp While searching for similar issues in the past, I just found an explanation on #68: a lot of timezones in the Timezone Database were moved to use numeric representations instead of "invented" abbreviation according them.

While they mentioned South American changes, we can see other timezones in the related commit (including Georgia): eggert/tz@c9e6ef0