Calendar January 3, 2018 — March 31, 2018 April 1, 2018 — June 30, 2018 July 1, 2018 — September 30, 2018 October 1, 2018 — December 31, 2018 January 1, 2019 — March 31, 2019 April 1, 2019 — June 30, 2019 July 1, 2019 — September 30, 2019 October 1, 2019 — December 31, 2019