require 'date'

puts 'East coast of Australia'
puts "AEST zone:\t#{DateTime.parse('2019-10-31 10:49:52.36400 AEST').zone} (expected +10:00)"
puts "AEDT zone:\t#{DateTime.parse('2019-10-31 10:49:52.36400 AEDT').zone} (expected +11:00)"

puts; puts 'Easter Island (off west coast of Chile)'
puts "EAST zone:\t#{DateTime.parse('2019-10-31 10:49:52.36400 EAST').zone} (expected -06:00)"
puts "EASST zone:\t#{DateTime.parse('2019-10-31 10:49:52.36400 EASST').zone} (expected -05:00)"