fails:Time#gmtoff returns the offset in seconds between the timezone of time and UTC
fails:Time#gmtoff returns the correct offset for US Eastern time zone around daylight savings time change
fails:Time#gmtoff returns the correct offset for Hawaii around daylight savings time change
fails:Time#gmtoff returns the correct offset for New Zealand around daylight savings time change
fails:Time#gmtoff returns offset as Rational
fails:Time#gmtoff given positive offset returns a positive offset
fails:Time#gmtoff given negative offset returns a negative offset
