.Net Standard Library for working with the National Retail Federation 4-5-4 Merchandising Calendar.
This project is based of my fork https://github.com/mhertzfeld/MerchandiseCalendar of https://github.com/Dromaeosaur/MerchandiseCalendar.
Information regarding the NRF Merchandising Calendar can be found at the NRF website below. https://nrf.com/resources/4-5-4-calendar