method
zone_utc?
zone_utc?(zone)
private
Hide source
# File lib/time.rb, line 86 def zone_utc?(zone) # * +0000 # In RFC 2822, +0000 indicate a time zone at Universal Time. # Europe/London is "a time zone at Universal Time" in Winter. # Europe/Lisbon is "a time zone at Universal Time" in Winter. # Atlantic/Reykjavik is "a time zone at Universal Time". # Africa/Dakar is "a time zone at Universal Time". # So +0000 is a local time such as Europe/London, etc. # * GMT # GMT is used as a time zone abbreviation in Europe/London, # Africa/Dakar, etc. # So it is a local time. # # * -0000, -00:00 # In RFC 2822, -0000 the date-time contains no information about the # local time zone. # In RFC 3339, -00:00 is used for the time in UTC is known, # but the offset to local time is unknown. # They are not appropriate for specific time zone such as # Europe/London because time zone neutral, # So -00:00 and -0000 are treated as UTC. if /\A(?:-00:00|-0000|-00|UTC|Z|UT)\z/ =~ zone true else false end end