Set SharePoint regional settings

###### Declare and Initialize Variables ######  

#Destination site collection url
$url="https://<tenant>.sharepoint.com/sites/<yoursitecollection>"

# data will be saved in same directory script was started from
$saveDir = (Resolve-path ".\")  
$currentTime= $(get-date).ToString("yyyyMMddHHmmss")  
$logFilePath=".\log-"+$currentTime+".log"  

## Start the Transcript  
Start-Transcript -Path $logFilePath 

## Connect to SharePoint Online site  
Connect-PnPOnline -Url $Url -Interactive


### Set SharePoint site time zone with Pnp Powershell 
$localeId = 2057 # UK
$timeZoneId = 2 # London

$web = Get-PnPWeb -Includes RegionalSettings,RegionalSettings.TimeZones
$timeZone = $web.RegionalSettings.TimeZones | Where-Object {$_.Id -eq $timeZoneId}
$web.RegionalSettings.LocaleId = $localeId
$web.RegionalSettings.TimeZone = $timeZone
$web.Update()
Invoke-PnPQuery


### Set Regional Settings using PnP PowerShell
$web = Get-PnPWeb -Includes RegionalSettings

## Define your regional settings in an object
$myRegionalSettings = @{
    LocaleId              = 1063
    WorkDayStartHour      = 9
    WorkDayEndHour        = 6
    FirstDayOfWeek        = 0
    Time24                = $False
    CalendarType          = 1
    AlternateCalendarType = 0
    WorkDays              = 124
}

$properties = $myRegionalSettings.GetEnumerator()

foreach($property in $myRegionalSettings.GetEnumerator()){
    $web.RegionalSettings.$($property.Name)= $property.Value 
}
$web.Update()
Invoke-PnPQuery


## Disconnect the context  
Disconnect-PnPOnline  
 
## Stop Transcript  
Stop-Transcript