Also the day of the opening of a Session at the Houses of Parliament by Her Majesty (see note 3).
The day of the prorogation of a Session of the Houses of Parliament by Her Majesty (see note 3).
- Where a building has two or more flagpoles: In addition to the Union Flag, an appropriate National flag may be flown but not
in a superior position. On their appropriate saint days, UK government buildings (within the wider Whitehall area) may fly
the national flags alongside the Union Flag.
- Flags should be flown at full mast all day.
- Flags should be flown on this day irrespective of whether or not Her Majesty performs the ceremony in person, but only on buildings
in the Greater London area.
- The Union flag should fly alongside the European flag. The Union flag should take precedence on Government buildings that only
have one flagpole.
- Only the Union Flag should be flown.
The UK authority advising the designated days for Union Flag flying is the Government Department for Culture, Media and Sport. To view
current Union flag flying days follow this link: www.gov.uk/guidance/designated-days-for-union-flag-flying
The UK's National Flag Charity, The Flag Institute, publish a comprehensive list of flag flying days on their website www.flaginstitute.org/wp/calendar