gcc/ada/libgnat/a-catizo.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --              A D A . C A L E N D A R . T I M E _ Z O N E S               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 -- This specification is derived from the Ada Reference Manual for use with --
  10 -- GNAT.  In accordance with the copyright of that document, you can freely --
  11 -- copy and modify this specification,  provided that if you redistribute a --
  12 -- modified version,  any changes that you have made are clearly indicated. --
  13 --                                                                          --
  14 ------------------------------------------------------------------------------
  15
  16 --  This package provides routines to determine the offset of dates to GMT.
  17 --  It is defined in the Ada 2005 RM (9.6.1).
  18
  19 package Ada.Calendar.Time_Zones is
  20
  21    --  Time zone manipulation
  22
  23    type Time_Offset is range -(28 * 60) .. 28 * 60;
  24    --  Offset in minutes
  25
  26    Unknown_Zone_Error : exception;
  27
  28    function Local_Time_Offset (Date : Time := Clock) return Time_Offset;
  29    function UTC_Time_Offset (Date : Time := Clock) return Time_Offset
  30      renames Local_Time_Offset;
  31    --  Returns (in minutes), the difference between the implementation-defined
  32    --  time zone of Calendar, and UTC time, at the time Date. If the time zone
  33    --  of the Calendar implementation is unknown, raises Unknown_Zone_Error.
  34
  35 end Ada.Calendar.Time_Zones;