1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . C A L E N D A R . T I M E _ Z O N E S --
9 -- Copyright (C) 2005-2008, Free Software Foundation, Inc. --
11 -- This specification is derived from the Ada Reference Manual for use with --
12 -- GNAT. In accordance with the copyright of that document, you can freely --
13 -- copy and modify this specification, provided that if you redistribute a --
14 -- modified version, any changes that you have made are clearly indicated. --
16 ------------------------------------------------------------------------------
18 -- This package provides routines to determine the offset of dates to GMT.
19 -- It is defined in the Ada 2005 RM (9.6.1).
21 package Ada
.Calendar
.Time_Zones
is
23 -- Time zone manipulation
25 type Time_Offset
is range -(28 * 60) .. 28 * 60;
27 Unknown_Zone_Error
: exception;
29 function UTC_Time_Offset
(Date
: Time
:= Clock
) return Time_Offset
;
30 -- Returns (in minutes), the difference between the implementation-defined
31 -- time zone of Calendar, and UTC time, at the time Date. If the time zone
32 -- of the Calendar implementation is unknown, raises Unknown_Zone_Error.
34 end Ada
.Calendar
.Time_Zones
;