time

cur = os.time()
h =(math.floor(cur/60/60)%12-4) --%24 for base 24 time, -4 for eastern time zone
m =(math.floor(cur/60)%60) --minutes
s =(cur%60) --seconds
function writ(t)
    return math.floor(t/10)
end
oh = writ(h)
om = writ(m)
os = writ(s)
io.write(oh,h-oh*10,":",om,m-om*10,":",os,s-os*10)