Ruby/Time/Day Light Saving
Материал из Wiki.crossplatform.ru
Содержание |
Checking Whether Daylight Saving Time Is Currently in Effect
puts Time.local(2006, 1, 1) # => Sun Jan 01 00:00:00 EST 2006 puts Time.local(2006, 1, 1).isdst # => false puts Time.local(2006, 10, 1) # => Sun Oct 01 00:00:00 EDT 2006 puts Time.local(2006, 10, 1).isdst # => true
Except for the Navajo Nation, Arizona doesn"t use Daylight Saving Time.
ENV["TZ"] = "America/Phoenix" arizona = Time.local(2006, 10, 1) # => Sun Oct 01 00:00:00 MST 2006 arizona.isdst # => false
Is daylight saving time
eastern = Time.local(2006, 10, 1) # => Sun Oct 01 00:00:00 EDT 2006 eastern.isdst # => true
Is daylight saving time by time zone
ENV["TZ"] = "US/Pacific" pacific = Time.local(2006, 10, 1) # => Sun Oct 01 00:00:00 PDT 2006 pacific.isdst # => true
restore the original time zone.
ENV["TZ"] = nil
