How long does it take to get approved for a walmart credit card?

Approval for any credit card usually takes less than 24 hours. When a person applies for a card - the company simply does a 'credit check'. The credit check will show how reliable a person is likely to be - in repaying any balance on the card. It will also show whether a person has previously had any CCJ's (County Court Judgements) - for non-payment of debt.