Liquid Steem/SBD can be withdrawn easily by selling for BTC and withdrawing into Fiat from your local exchange. Selling steem for btc is instant and sending btc to your coinbase wallet might take an hour. Then the rest depends on the final exchange which has to credit your bank account.

Here in India this takes less than an hour. Time is only limited by BTC confirmation time which is about 45mins-60mins usually. Coinome here does instant bank transfer upon withdrawal so that's usually 2 mins work to sell btc for INR and withdraw.

I'm not sure how much time coinbase or other exchanges with fiat pairs take.