How to get my date time value reflect value as per logged in user's time zone?

Hi Rachit

Yes it can be done , Salesforce provide us the Timezone class with which you can get the time zone offset of currently logged in user and then you can make calculations over it.

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_methods_system_timezone.htm

Thanks