Background: We currently have "before a certain date" and "after a certain date", however, when the user wants to define a timeframe between two dates/times, the current before/after options cannot fulfil this need. We also need relative days and times (e.g. From 14 days ago to 7 days ago)

A possible implementation can be seen in the attached mockup.

Story: As a Marketing Campaign Manager I want to segment users for triggering campaigns, based on a "during" radio button that triggers two empty fields to choose two time points.