How to change date format from the US to the UK in the web client.
 

Production and Test

Please follow the below steps to change the date format from US to UK.
-- Go to path Nimbus/Web Server/App/Localisations
-- Open 'LocaleFormat.en-us' file in edit mode.
-- Please make the change in the below parameter. 
Change:
ShortDate        ="M/d/yyyy"
LongDate         ="dddd, MMMM dd, yyyy"
To:
ShortDate        ="d/M/yyyy"
LongDate         ="dddd, dd MMMM, yyyy"

Please save a copy of the original file before making any changes. Once you have made changes, please restart your web server.

Please perform the above changes on the Test environment first and after validation proceed with Production.

This Article will help to change date format from US to UK

Date Format
US to UK
Web Client