The Countess of Wessex Abbey January 24** Eve of Conversion of St Paul St Peter January 25 Conversion of St Paul St Peter February 1** Eve of Presentation of Christ in the Temple St Peter February 2 Presentation of Christ in the Temple St Peter February 6 The Queen's Accession Day [1952] Abbey February 19 Birthday of His Royal Highness The Duke of York Abbey February 22 Ash Wednesday St Peter March 1 St David's Day Red Dragon March 10 Birthday of His Royal Highness The Earl of Wessex Abbey March 12 Commonwealth Day Abbey and R Standard March 17 St Patrick's Day St Patrick March 25** Eve of The Annunciation of Our Lord to the Blessed Virgin Mary St Peter March 26 The Annunciation of Our Lord to the Blessed Virgin Mary St Peter 2 - 7 Note - no flags in Holy Week none April 7** Easter Eve St Peter April 8 Easter Day St Peter 9 - 15 Easter Week St Peter April 9 Dedication of St Margaret's Church, Westminster Abbey. 1523 St Peter April 21 Birthday of Her Majesty Queen Elizabeth II Abbey April 25 Anzac Day Abbey May 2 St George's Day St George May 3 St Mark's Day St Peter May 4 St Philip and St James St Peter May 9 Europe Day Abbey May 14 St Mathias St Peter May 15 Anniversary of the Coronation of Henry III Abbey May 16** Election of The Lord Mayor of Westminster Abbey Ascension Eve St Peter