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

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In reply to Re^3: binary clock from java.dzone.com by wrog
in thread binary clock from java.dzone.com by Skeeve

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