From Pat in Canada.What are the dates for the week of Chinese New Year in Guangzhou.What is open?

Hello...I was wondering what the exact dates are for the start of the celebrations for the Chinese New Year in GZ. We have a package to send out to our son at his school he teaches at. It will be going via Canada Post, then transferring to what ever the delivery service is in GZ. Will any of these schools, or facilities such as delivering parcels be open during that time, and send them out for delivery? Thanks kindly....Pat From Canada. Or, should we hold off, until the the New Year Celebrations are over.