We rely on the author rewards. If the rewards of the payout posts come in SBD, we transfer SBD to winners' wallets. If it pays STEEM and SBD like it is happening currently, we transfer SBD and STEEM (both) to winners' wallets.
If you meant how much time it takes to process the payout after shares request, then it's 7-8 days after you see your name in the winners announcement.