functions/Get-MyTime.ps1
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#requires -version 5.1 <# list time zones [System.TimeZoneinfo]::GetSystemTimeZones() | out-gridview or Get-TimeZone -listavailable time zone IDs are case sensitive #> Function Get-MyTimeInfo { [cmdletbinding()] [Outputtype("myTimeInfo", "String")] [alias("gti")] Param( [Parameter(Position = 0)] [ValidateNotNullOrEmpty()] #limit this to no more than 5 locations [System.Collections.Specialized.OrderedDictionary]$Locations = [ordered]@{ Singapore = "Singapore Standard Time"; Seattle = "Pacific Standard Time"; Stockholm = "Central Europe Standard Time"; }, [ValidateNotNullOrEmpty()] [string]$HomeTimeZone = "Eastern Standard Time", [Parameter(HelpMessage = "Specify the datetime value to use. The default is now.")] [ValidateNotNullOrEmpty()] [datetime]$DateTime = $(Get-Date), #Display the results as a formatted table. This parameter has an alias of ft. [Alias("ft")] [switch]$AsTable, #Display the results as a formatted list. This parameter has an alias of fl. [Alias("fl")] [switch]$AsList ) Write-Verbose "Starting $($myinvocation.mycommmand)" $now = $DateTime $utc = $now.ToUniversalTime() Write-Verbose "Getting world clock settings for $Now [UTC: $UTC]" $hash = [Ordered]@{ Now = $now Home = [System.TimeZoneinfo]::ConvertTimeBySystemTimeZoneId($now, $HomeTimeZone) UTC = $UTC } $locations.GetEnumerator() | foreach-object { Write-Verbose "Getting time for $($_.key)" $remote = [System.TimeZoneinfo]::ConvertTimeBySystemTimeZoneId($now, $_.value) Write-Verbose $remote $hash.Add($_.key, $remote) } $hash.add("IsDaylightSavings", $now.IsDaylightSavingTime()) $tobj = New-Object -TypeName PSObject -Property $hash $tobj.psobject.TypeNames.insert(0, "myTimeInfo") $cities = $tobj.psobject.properties.where( {$_.name -notmatch 'utc|now'}).Name if ($AsTable) { Write-Verbose "Formatting output as a table" $tobj | Format-Table -GroupBy @{Name = "Now"; expression = {"$($_.Now) `n UTC: $($_.utc)"}} -Property $cities | Out-String } elseif ($AsList) { Write-Verbose "Formatting output as a list" $tobj | Format-List -GroupBy @{Name = "Now"; expression = {"$($_.Now) `n UTC: $($_.utc)"}} -Property $cities | Out-String } else { Write-Verbose "Writing object to the pipeline" $tobj } Write-Verbose "Ending $($myinvocation.mycommmand)" } #end function |