Host a Macmillan Coffee Morning in your workplace and fundraise to help the charity support people living with cancer. It’s also a good opportunity to talk about cancer over a cup of tea and cake, and share more information on cancer screening and prevention. The official date of Coffee Morning is Friday 29 September. This doesn’t mean you can’t host at other times of the year, or on other dates in September. You can host your coffee morning whenever suits you best.