http://www.perlmonks.org?node_id=1032259


in reply to Re^2: binary clock from java.dzone.com
in thread binary clock from java.dzone.com

which can be further shortened by using perl -d. Also, this version doesn't entail knowing the answer in advance:
# 24*2*60*(64*3-20)+60*60*(8*2+4*3*3) # =2880*(4*43+5*13) # =2880*237 # 1 2 3 #123456789012345678901234567890123456789 p 8640*79