Making date static

Author: pikumarmsft16

src/ResourceManager/AzureBackup/Commands.AzureBackup.Test/ScenarioTests/AzureBackupScenarioTests.ps1

@@ -32,7 +32,7 @@ function Test-AzureBackupEndToEnd
 	$r2 = New-AzureRMBackupRetentionPolicyObject -WeeklyRetention -DaysOfWeek "Monday" -Retention 10;
 	$r3 = New-AzureRMBackupRetentionPolicyObject -MonthlyRetentionInDailyFormat -DaysOfMonth "10" -Retention 10;
 	$r = ($r1, $r2, $r3);
-	$backupTime = (Get-Date -Hour 15 -Minute 30 -Second 0).ToUniversalTime();
+	$backupTime = (Get-Date("17 August 2015 15:30:00")).ToUniversalTime();
 	$protectionpolicy = New-AzureRMBackupProtectionPolicy -Vault $vault -Name $ProtectionPolicyName -Type "AzureVM" -Daily -BackupTime $backupTime -RetentionPolicy $r; 
 
 	Assert-AreEqual $protectionpolicy.Name $ProtectionPolicyName;