# Historically `Date._iso8601(nil)` returns ``, but in the `date` gem versions `3.2.1`, `3.1.2`, `3.0.2`, # and `2.0.1`, `Date._iso8601(nil)` raises `TypeError` # Future `date` releases are expected to revert back to the original behavior. Values of interval data types are sometimes called intervals. The interval data types are INTERVAL YEAR TO MONTH and INTERVAL DAY TO SECOND. Values of datetime data types are sometimes called datetimes. # File activesupport/lib/active_support/values/time_zone.rb, line 387 def iso8601( str) Datetime and Interval Data Types The datetime data types are DATE, TIMESTAMP, TIMESTAMP WITH TIME ZONE, and TIMESTAMP WITH LOCAL TIME ZONE. Keys are Rails TimeZone names, values are TZInfo identifiers. "Port Moresby" => "Pacific/Port_Moresby", Time Zones West of Greenwich GMT-6, Central Standard Time (CST), S (Sierra) GMT-7, Mountain Standard Time (MST), T (Tango) GMT-8, Pacific Standard Time (PST). "West Central Africa" => "Africa/Algiers", "Cape Verde Is." => "Atlantic/Cape_Verde", "Mid-Atlantic" => "Atlantic/South_Georgia", "Buenos Aires" => "America/Argentina/Buenos_Aires", Each time zone is described by an identifier and usually has the format region/city (. "Atlantic Time (Canada)" => "America/Halifax", A time zone is a region of the earth where the same standard time is used. "Indiana (East)" => "America/Indiana/Indianapolis", zone an area or a part of an object, especially one that is different from its surroundings. "Eastern Time (US & Canada)" => "America/New_York", "Central America" => "America/Guatemala", "Central Time (US & Canada)" => "America/Chicago", But, if the location had some kind of administrative time transition during which the clocks jumped back, then both results can correspond to standard times. TIMESTAMPNTZ is the default for TIMESTAMP. "Mountain Time (US & Canada)" => "America/Denver", If the output format contains a time zone, the UTC indicator ( Z ) is displayed. "Pacific Time (US & Canada)" => "America/Los_Angeles", Instead, countries all over the world are divided into time zones, based loosely on longitudinal bands. "International Date Line West" => "Etc/GMT+12", It wouldnt make sense for us to be on the same time.
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