PostNL says this "Due to the outbreak of the Corona virus (2019-nCoV) China Post will change its services to the Hubei Province. For international mail and parcels destined for Hubei Province (postcodes 430000–449999), China Post will contact the addressee by telephone before delivery to ask about their delivery preferences. The item can either be temporarily stored at the postal outlet, or made available for pick-up from the outlet, delivered to a smart parcel locker, or delivered by other non-face-to-face methods. In order to minimise the spread of the novel coronavirus (2019-nCoV), China Post will disinfect all the postal offices, processing centers and transportation vehicles for all inbound mail and parcels. All the processing and delivery will be delayed accordingly" but basicly it's when they are allowed to work and nobody really knows for Feb.