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Respect -ListAvailable:$false in Get-TimeZone #26463

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Merged
iSazonov merged 1 commit into from
Nov 17, 2025
Merged

Respect -ListAvailable:$false in Get-TimeZone #26463

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2 changes: 1 addition & 1 deletion src/Microsoft.PowerShell.Commands.Management/commands/management/TimeZoneCommands.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@ protected override void ProcessRecord()
// make sure we've got the latest time zone settings
TimeZoneInfo.ClearCachedData();

if (this.ParameterSetName.Equals("ListAvailable", StringComparison.OrdinalIgnoreCase))
if (ListAvailable)
{
// output the list of all available time zones
WriteObject(TimeZoneInfo.GetSystemTimeZones(), true);
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6 changes: 6 additions & 0 deletions test/powershell/Modules/Microsoft.PowerShell.Management/TimeZone.Tests.ps1
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Expand Up @@ -71,6 +71,12 @@ Describe "Get-Timezone test cases" -Tags "CI" {
$oneExpectedOffset | Should -BeIn $observedIdList
}

It "Call with -ListAvailable:`$false returns current TimeZoneInfo (not list)" {
$result = Get-TimeZone -ListAvailable:$false
$result | Should -BeOfType TimeZoneInfo
$result.Id | Should -Be ([System.TimeZoneInfo]::Local).Id
}

It "Call Get-TimeZone using ID param and single item" {
$selectedTZ = $TimeZonesAvailable[0]
(Get-TimeZone -Id $selectedTZ.Id).Id | Should -Be $selectedTZ.Id
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