Any one can guess, how long it can wait for confirm?
0 fee is generally a bad idea. You can calculate your transaction's priority with:
priority = sum(input_value_in_base_units * input_age)/size_in_bytes
So we have:
(160000000*281 + 50000000*390 + 150000000*375 + 150000000*141) /669
= 212,047,832
57,600,000 is the cutoff, so you're quite a bit above that ("high priority"). However, 0 fee transactions always take significantly longer to be included in a block.
To answer your question: a couple hours would be a good bet.