Hello, what is best exchange site where I can buy Bitcoin for fiat via bank transfer? And how long it needs to show that this money is on my balance?
Some exchanges need 5 days and that's too much.
for coinbase it depends where u are located bcs for eastern europe they don't open acocunts.
Kraken is also a good choise, binance or bittrex are my favourite exchanges ..
The wire it normally takes arround 3 - 4 working days, in some cases up to 5 in some cases 2 .. it depends where the receipt is and where are you located.
Cheers!