Last modified: 2012-04-16 09:15:44 UTC
Please Change Timezone name from Asia/Calcutta to Asia/Kolkata in Mediawiki Preferences. http://en.wikipedia.org/wiki/Special:Preferences Calcutta was changed to Kolkata in 2001 http://en.wikipedia.org/wiki/Renaming_of_cities_in_India http://en.wikipedia.org/wiki/Kolkata
This is an upstream bug with either php, or the underlying system timezone information. However, both timezones are present, so Asia/Calcutta is probably just being kept for backwards compatibility. (maybe close worksforme(?))
These are indeed coming from the system timezone database, which is provided by Ubuntu Linux's standard operating system packages. There are a number of such pairs of 'old' and 'new' name variants sitting side-by-side for compatibility -- even 'Asia/Saigon' and 'Asian/Ho Chi Minh' -- and since we're displaying the raw timezone identifiers you just get them all. Note that if we add type-ahead suggestion or other such improvements, it'll most likely make the expected modern spelling or name pop up first as well while still keeping compatibility for people who might start typing the old form; so we won't want to filter it out. Going ahead and resolving WORKSFORME.
