When a user logins into Platform or Service Portal, pop up should be displayed asking for Time Zone
If the user selects the time zone from the drop down (Please note that there is OOB time zone field with choices) and clicks "Save" then the time zone should be updated
By default, the time zone choice should be defaulted to "None"
If the user closes the pop up without selecting time zone then the pop up should appear again when the user logins into Platform or Portal
Pop up should be configured both on Platform and Portal
