How to make a function timedelay by 5 seconds

Question

I'm trying to translate this into C# code:

Wait 5 seconds and then debit the bank account.

I've got a feeling I'm close... but this isn't working. Am I doing this the right way?

    public override void Process(BankAccount b, decimal amount)
    {
        DateTime present = DateTime.Now;
        DateTime addFiveSeconds = DateTime.Now.AddSeconds(5);

        if (present != addFiveSeconds)
        {
            this.Status = TransactionStatus.Pending;
        }
        else
        {
            b.Debit(amount);
            this.Status = TransactionStatus.Complete;
        }
    }

Answer 1

I think above answer has flaw, it hangs up the main thread , in most case, it is dangerous. You should start a new thread for this delay task, in the thread proc, sleep 30 seconds and then do the work in second thread.