--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/installationservices/switestfw/test/sntpclient/util.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#include "util.h"
+#include <centralrepository.h>
+
+_LIT(KDaylightSavingsMinFormat, "%F%Y0224:");
+_LIT(KDaylightSavingsMaxFormat, "%F%Y0924:");
+
+void Util::SetAppropriateTimezoneL()
+	{
+	TUid repUid = {0x1020e4d3};
+	CRepository* rep = CRepository::NewLC(repUid);
+	
+	// Set the date format to European
+	User::LeaveIfError(rep->StartTransaction(CRepository::EConcurrentReadWriteTransaction));
+	User::LeaveIfError(rep->Set(101, EDateEuropean)); // 101 is the date format reg entry
+	TUint32 keys(0);
+	User::LeaveIfError(rep->CommitTransaction(keys));
+	
+	CleanupStack::PopAndDestroy(rep);
+	
+	TExtendedLocale locale;
+	locale.LoadSystemSettings();
+	locale.GetLocale()->SetDateFormat(EDateEuropean);
+	User::LeaveIfError(locale.SaveSystemSettings());
+	}
+
+TBool Util::DaylightSavingsAppliesL(const TTime& utc)
+	{
+	
+	// This algorithm needs the first day of the week to be monday
+	
+	TDay oldStart;
+	
+	TLocale set;
+	oldStart = set.StartOfWeek();
+	set.SetStartOfWeek(EMonday);
+	set.Set();
+	
+	TBuf<9> min;
+	TBuf<9> max;
+	
+	utc.FormatL(min, KDaylightSavingsMinFormat);
+	utc.FormatL(max, KDaylightSavingsMaxFormat);
+	
+	// Get times representing the first/last possible day of this 
+	// year that daylight savings time change could change on
+	
+	TTime timeMin;
+	User::LeaveIfError(timeMin.Set(min));
+	TTime timeMax;
+	User::LeaveIfError(timeMax.Set(max));
+
+	// Find the last sunday in the respective months
+	
+	TTimeIntervalDays addMin(6 - timeMin.DayNoInWeek());
+	TTimeIntervalDays addMax(6 - timeMax.DayNoInWeek());
+	
+	timeMin += addMin;
+	timeMax += addMax;
+	
+	// The change happens at 1AM.
+	TTimeIntervalHours hour(1);
+	timeMin += hour;
+	timeMax += hour;
+	
+	// Now we know which day the change occurs on.
+	// Compare it to what the UTC is.
+
+	TBool result = ((timeMin <= utc) && (timeMax > utc));
+	
+	// reset the first week day
+	set.SetStartOfWeek(oldStart);
+	set.Set();
+	
+	return result;
+	
+	}