It takes me about an hour and a half a day to tweet and Facebook bunty on 20.. Writing articles for bounty takes about 2 - 3 hours. For the signature bounty to 1 hour a week...
Generally speaking, such a time as you said is not enough to perform all the work on the Bounty of the company. we'll be at the bitcointalk forum I spend a little more time to get a little more information and news about the crypto currency.