as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
why can't online transactions be completed outside of business hours?
user
generally, unless you're doing a wire transfer, bank transactions are processed in batches overnight. so the credit card company won't be able to confirm your transfer until the next business day (it may take even longer for them to actually receive the money).
assistant