Public/Get-IANATimeZone.ps1
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function Get-IANATimeZone { <# .SYNOPSIS Returns the IANA Time Zone based on public IP address. .DESCRIPTION There are two endpoints used to obtain the IANA Time Zone: - ifconfig.me: Get the public IP address of the host - ip-api.com: Translate the public IP into an IANA time zone .EXAMPLE Get-IANATimeZone Returns the IANA time zone for the current host. .EXAMPLE Get-IANATimeZone 8.8.8.8 Returns the IANA time zone for the IP address 8.8.8.8 .PARAMETER IPAddress Specifies the IP address to get the IANA time zone for. .OUTPUTS IANA time zone, as a string #> [CmdletBinding()] param ( [string]$IPAddress = (Invoke-WebRequest -Uri 'https://ifconfig.me/ip' -ContentType 'text/plain' -UseBasicParsing).Content.Trim() ) Write-Verbose "Public IP: $IPAddress" try { $iana_tz = (Invoke-RestMethod -Method Get -Uri "http://ip-api.com/json/$IPAddress" -UseBasicParsing).timezone } catch { throw "Failed to get public IP address: $_" } Write-Verbose "IANA Timezone: $iana_tz" return $iana_tz } |