usk_date: 

Repeats every month on the first Saturday 36 times.
Saturday, January 5, 2019 - 10:00 to 13:00
Saturday, February 2, 2019 - 10:00 to 13:00
Saturday, March 2, 2019 - 10:00 to 13:00
Saturday, April 6, 2019 - 10:00 to 13:00
Saturday, May 4, 2019 - 10:00 to 13:00
Saturday, June 1, 2019 - 10:00 to 13:00
Saturday, July 6, 2019 - 10:00 to 13:00
Saturday, August 3, 2019 - 10:00 to 13:00
Saturday, September 7, 2019 - 10:00 to 13:00
Saturday, October 5, 2019 - 10:00 to 13:00
Saturday, November 2, 2019 - 10:00 to 13:00
Saturday, December 7, 2019 - 10:00 to 13:00
Saturday, January 4, 2020 - 10:00 to 13:00
Saturday, February 1, 2020 - 10:00 to 13:00
Saturday, March 7, 2020 - 10:00 to 13:00
Saturday, April 4, 2020 - 10:00 to 13:00
Saturday, May 2, 2020 - 10:00 to 13:00
Saturday, June 6, 2020 - 10:00 to 13:00
Saturday, July 4, 2020 - 10:00 to 13:00
Saturday, August 1, 2020 - 10:00 to 13:00
Saturday, September 5, 2020 - 10:00 to 13:00
Saturday, October 3, 2020 - 10:00 to 13:00
Saturday, November 7, 2020 - 10:00 to 13:00
Saturday, December 5, 2020 - 10:00 to 13:00
Saturday, January 2, 2021 - 10:00 to 13:00
Saturday, February 6, 2021 - 10:00 to 13:00
Saturday, March 6, 2021 - 10:00 to 13:00
Saturday, April 3, 2021 - 10:00 to 13:00
Saturday, May 1, 2021 - 10:00 to 13:00
Saturday, June 5, 2021 - 10:00 to 13:00
Saturday, July 3, 2021 - 10:00 to 13:00
Saturday, August 7, 2021 - 10:00 to 13:00
Saturday, September 4, 2021 - 10:00 to 13:00
Saturday, October 2, 2021 - 10:00 to 13:00
Saturday, November 6, 2021 - 10:00 to 13:00
Saturday, December 4, 2021 - 10:00 to 13:00