In Dynamics 365 CE, the data time field’s value will always be returned in UTC time when retrieved through the Organization Service.
Just go through this insightful article to learn more about CRM Date Time.
https://www.powerobjects.com/2012/06/07/crm-2011-truths-about-datetime/
For e.g.
Within application à
Inside CRM
Now to get it in Local Time of the User we can use LocalTimeFromUTCTimeRequest class.
