CIGAL Reference Manual, Chapter 4 (Variables): year
usage: dest = year
YEAR is a number variable containing the current year. This variable is read-only and its value is set at the moment it is read.
At 5:25 pm on October 13th, 1992, the CIGAL command: ftype '%5/2f/%2d %5:2f\n' day year-1900 hour would print as: 10/13/92 17:25