ref: f53e048d3a57eeee135e2d8aa3cd72b7f3dc2711
dir: /src/libc/time/gentz.awk/
BEGIN { print "#include \"../libc.h\"\nstruct tzone tzones[] = {" } { split($2,a,":") min = a[1] * 60 min = min + a[2] sec = min * 60 printf "\t{\"%s\", %d},\n", $1, sec } END { print "\t{0,\t0}\n};\n" }