This module allows you to store a single date in the database, while displaying any offset of that date to your users. Rather than needing extra date fields to store/display this information, you can simply apply the display format and specify your desired offset for a stored date.
Use this module in the same way you would any other formatting module.
Enables Field fields and extra fields in a bundle to be added to the addressfield widget. It will look like one widget, but they're separate fields. You can add any kind of field, so you can extend the addressfield widget however you like.