Etc/GMT+12 is GMT-12 Posted by deecewan on Wednesday June 21, 2023 @09:07PM from the ibm.com dept. https://www.ibm.com/docs/en/cloudpakw3700/2.3.0.0?topic=SS6PD2_2.3.0/doc/psapsys_restapi/time_zone_list.htm ( 1 comment | on HN )
Rails has this behaviour (which is where I spotted it) but it seems very counter-intuitive
> ActiveSupport::TimeZone['Etc/GMT+12'].now
Wed, 21 Jun 2023 13:07:24.082417000 -12 -12:00