Railsで扱えるタイムゾーンの一覧を確認

time_zone_index_in_rails.md

$ rails console

ActiveSupport::TimeZone.all.map {|tz| tz.to_s}

# => ["(GMT-12:00) International Date Line West",
# "(GMT-11:00) American Samoa",
# "(GMT-11:00) Midway Island",
# "(GMT-10:00) Hawaii",
# "(GMT-09:00) Alaska",
# "(GMT-08:00) Pacific Time (US & Canada)",
# "(GMT-08:00) Tijuana",
# ...
# ...
# ...