I personally work 24 X 7 as I understand the importance of timely delivery for entertainment industry. However, my studios operate 9.30 AM to 8.00 PM , Monday through Saturday. For urgent assignment , even studios are open 24X7. I take 70% of agreed fees in advance through Paypal or Bank transfer ( net of commissions ). Balance within one week after delivering the files or client's approval, whichever is earlier.