Exchange 2013 - Change OWA mail box Language / Time Zone

Exchange 2013 - Change OWA mail box Language / Time Zone

Symptoms

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When you first log on to Outlook Web App (OWA) and then select a language, you receive an error message that resembles the following:

Error:
X-ClientId: client_name
X-OWA-Error: ScriptLoadError; Failed to load script: https://mail.contoso.com/owa/prem/15.0.1130.7/scripts/globalize/globalize.culture.es-419.js
X-OWA-Version: null
X-FEServer: exchange_server_name
X-BEServer: undefined
Date: date time

Once OWA apper Failed to load script    globalize.culture.es

That's mean user select the un-support (error) time zone in OWA first init. 

To update the correct time zone, go to exchange power shell

List user time zone: 

Get-MailboxRegionalConfiguration -Identity <mailbox>
Identity             Language        DateFormat TimeFormat TimeZone
--------             --------        ---------- ---------- --------
domain.com... es-ES_tradnl    dd/MM/yy   HH:mm      Mountain Standard Time

Update user time zone:

Set-MailboxRegionalConfiguration -Identity <USER_NAME> -TimeZone 'Pacific Standard Time' -DateFormat 'M/d/yyyy' -Language 'EN-US' -TimeFormat 'h:mm tt'

Date Format must be follow the format from language
for exapmle:
en-US 
For current language setting "en-US". Valid formats include "M/d/yyyy, M/d/yy, MM/dd/yy, MM/dd/yyyy, yy/MM/dd, yyyy-MM-dd, dd-MMM-yy".


Reference for time zone:
https://support.microsoft.com/en-us/help/973627/microsoft-time-zone-index-values

China Standard Time

(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi

Support reference:
http://networksteve.com/exchange/topic.php/Exchange_2013_-_OWA_Spanish_Language/?TopicId=52993&Posts=2

https://oddytee.wordpress.com/2015/01/29/set-language-and-time-zone-for-owa-in-exchange-2013/