This is a question I’ve just received from one of my customers.
So, you can calculate this by using PowerShell my using this script.
For your convenience, these are the dates for each Patch Tuesday in 2013:
Tuesday 9 April 2013
Tuesday 14 May 2013
Tuesday 11 June 2013
Tuesday 9 July 2013
Tuesday 13 August 2013
Tuesday 10 September 2013
Tuesday 8 October 2013
Tuesday 12 November 2013
Tuesday 10 December 2013
And these are for 2014:
Tuesday 14 January 2014
Tuesday 11 February 2014
Tuesday 11 March 2014
Tuesday 8 April 2014
Tuesday 13 May 2014
Tuesday 10 June 2014
Tuesday 8 July 2014
Tuesday 12 August 2014
Tuesday 9 September 2014
Tuesday 14 October 2014
Tuesday 11 November 2014
Tuesday 9 December 2014
And these are for 2015:
Tuesday 13 January 2015
Tuesday 10 February 2015
Tuesday 10 March 2015
Tuesday 14 April 2015
Tuesday 12 May 2015
Tuesday 9 June 2015
Tuesday 14 July 2015
Tuesday 11 August 2015
Tuesday 8 September 2015
Tuesday 13 October 2015
Tuesday 10 November 2015
Tuesday 8 December 2015
