I bought some BTC on Coinbase last night and had it sent to Poloniex. I know the BTC wallet address was accurate. Its still pending 11 hours later and doesn't show up in the Poloniex deposit/withdrawal history. Any clue on how long BTC transactions are taking?
I think 11 hour its lot of time, btc transaction dont have a exact time , it only depend on confirmation number and fee (more pay for fee faster transaction)
Personally i use blackchain and localbitcoin wallet, and in max 1 hour the transaction its confirmed