class ActiveSupport::TimeZone

def [](arg)

Experimental RBS support (using type sampling data from the type_fusion project). 

def []: (ActiveSupport::TimeZone arg) -> untyped

This signature was generated using 1 sample from 1 application.

Returns +nil+ if no such time zone is known to the system.
timezone to find. (The first one with that offset will be returned.)
numeric value it is either the hour offset, or the second offset, of the
is interpreted to mean the name of the timezone to locate. If it is a
Locate a specific time zone object. If the argument is a string, it 
def [](arg)
  case arg
  when self
    arg
  when String
    begin
      @lazy_zones_map[arg] ||= create(arg)
    rescue TZInfo::InvalidTimezoneIdentifier
      nil
    end
  when TZInfo::Timezone
    @lazy_zones_map[arg.name] ||= create(arg.name, nil, arg)
  when Numeric, ActiveSupport::Duration
    arg *= 3600 if arg.abs <= 13
    all.find { |z| z.utc_offset == arg.to_i }
  else
    raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}"
  end
end