January 16, 2019
On Wednesday, January 16, 2019, the President signed into law:
S. 24, the "Government Employee Fair Treatment Act of 2019," which requires the compensation of government employees for wages lost, work performed, or leave used during a lapse in appropriations that begins on or after December 22, 2018, and entitles excepted employees to use leave during a lapse in appropriations.
Donald J. Trump, Bill Announcement Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/336484