Dates of Prorogues in the UK Parliament..
The period between the UK Parliament being prorogued has averaged 429 days, in the 31 prorogues between 1980 and 2017.
As at 25th September 2019 there has not been a valid prorogation for 881 days.
The longest period between a prorogue, before the 2019 one, was in 2012 when the Prorogation was from 1 May 2012 for 8 days and was 754 days since the last prorogue, in 2010.
The shortest period between a prorogue was in 2010 when the Prorogation was from 8 Apr 2010 for 4 days and was 147 days since last prorogue, in 2009.
The longest Prorogue in that time was for 21 days in 2014, from 14 May 2014 to the State Opening on 4th June 2014.
The shortest Prorogue in that time was for 4 days in 2015, from 26th March 2015 to the Dissolution on 30th March 2015 and the State Opening on 27th May 20015.
UK Parliament Prorogues 1981 to 2019
Prorogation 28 Aug 2019 ‘Not valid’ 853 days since last LEGAL prorogue
Prorogation 27 Apr 2017 for 6 days and was 350 days since last prorogue
Prorogation 12 May 2016 for 6 days and was 413 days since last prorogue
Prorogation 26 Mar 2015 for 4 days and was 316 days since last prorogue
Prorogation 14 May 2014 for 21 days and was 384 days since last prorogue
Prorogation 25 Apr 2013 for 13 days and was 359 days since last prorogue
Prorogation 1 May 2012 for 8 days and was 754 days since last prorogue
Prorogation 8 Apr 2010 for 4 days and was 147 days since last prorogue
Prorogation 12 Nov 2009 for 6 days and was 351 days since last prorogue
Prorogation 26 Nov 2008 for 7 days and was 393 days since last prorogue
Prorogation 30 Oct 2007 for 7 days and was 356 days since last prorogue
Prorogation 8 Nov 2006 for 7 days and was 720 days since last prorogue
Prorogation 18 Nov 2004 for 5 days and was 364 days since last prorogue
Prorogation 20 Nov 2003 for 6 days and was 378 days since last prorogue
Prorogation 7 Nov 2002 for 6 days and was 707 days since last prorogue
Prorogation 30 Nov 2000 for 6 days and was 385 days since last prorogue
Prorogation 11 Nov 1999 for 13 days and was 357 days since last prorogue
Prorogation 19 Nov 1998 for 5 days and was 608 days since last prorogue
Prorogation 21 Mar 1997 for 11 days and was 155 days since last prorogue
Prorogation 17 Oct 1996 for 6 days and was 344 days since last prorogue
Prorogation 8 Nov 1995 for 7 days and was 370 days since last prorogue
Prorogation 3 Nov 1994 for 13 days and was 363 days since last prorogue
Prorogation 5 Nov 1993 for 13 days and was 745 days since last prorogue
Prorogation 22 Oct 1991 for 9 days and was 355 days since last prorogue
Prorogation 1 Nov 1990 for 6 days and was 350 days since last prorogue
Prorogation 16 Nov 1989 for 5 days and was 366 days since last prorogue
Prorogation 15 Nov 1988 for 7 days and was 739 days since last prorogue
Prorogation 7 Nov 1986 for 5 days and was 373 days since last prorogue
Prorogation 30 Oct 1985 for 7 days and was 364 days since last prorogue
Prorogation 31 Oct 1984 for 6 days and was 734 days since last prorogue
Prorogation 28 Oct 1982 for 6 days and was 363 days since last prorogue
Prorogation 30 Oct 1981 for 5 days and was 351 days since last prorogue
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