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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . C A L E N D A R . T I M E _ Z O N E S --
-- --
-- S p e c --
-- --
-- Copyright (C) 2005-2012, Free Software Foundation, Inc. --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. In accordance with the copyright of that document, you can freely --
-- copy and modify this specification, provided that if you redistribute a --
-- modified version, any changes that you have made are clearly indicated. --
-- --
------------------------------------------------------------------------------
-- This package provides routines to determine the offset of dates to GMT.
-- It is defined in the Ada 2005 RM (9.6.1).
package Ada.Calendar.Time_Zones is
-- Time zone manipulation
type Time_Offset is range -(28 * 60) .. 28 * 60;
Unknown_Zone_Error : exception;
function UTC_Time_Offset return Time_Offset;
-- Returns (in minutes), the difference between the implementation-defined
-- time zone of Calendar, and UTC time. If the time zone of the Calendar
-- implementation is unknown, raises Unknown_Zone_Error.
function UTC_Time_Offset (Date : Time) return Time_Offset;
-- Returns (in minutes), the difference between the implementation-defined
-- time zone of Calendar, and UTC time, at the time Date. If the time zone
-- of the Calendar implementation is unknown, raises Unknown_Zone_Error.
end Ada.Calendar.Time_Zones;
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