for the occasion is a must. Discover our dress code for Royal Ascot and each season here. TO WEAR. ROYAL ASCOT. 20TH JUNE — 24TH JUNE. The Royal Ascot attracts the finest race horses in the world. From the traditional dress code, Like Nowhere Else. Tuesday 19th - Saturday 23rd June. Click here to access online booking for the Royal Ascot racing meet in England. Also includes information and booking for other popular racing events.