I get an error:
date +%s -r ./suc.zip
date: illegal time format
usage: date [-jnRu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ...
[-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]
Strange, but it does not seem to work.
I try with hardcoded times.
Geir