Parens could be ommited twice: 
#         1         2         3         4         5         
#12345678901234567890123456789012345678901234567890123456789
 $\+=unpack"%32B*",pack"i3",gmtime$_ for 1..86400;print

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My shortest approach: 
#         1     
#123456789012345
print 682560

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In reply to Re^2: binary clock from java.dzone.com by grizzley
in thread binary clock from java.dzone.com by Skeeve

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