AF Date Time Range Picker works out of the box, while keeping configuration, appearance and internal references separate when you need to change them.
Settings
Optionally configure the selection mode, trigger type, allowed dates, minimum and maximum dates, initial values, date and time formats, first day of the week, selection behavior and Today, Now and Clear controls.
Design
Use one of the included Theme and Layout presets as-is, or edit and duplicate the ScriptableObjects in the Inspector to match your project's UI.
Advanced
Internal UI references are exposed, allowing individual objects to be edited, replaced or rearranged while keeping the picker logic intact.
Standard Unity hierarchy
Supplied prefab uses standard uGUI and TextMesh Pro components that can be styled or replaced as required.