You want to make sure that all packages arrive at your customers before Christmas. During the busy pre-Christmas period carriers worldwide are handling the highest volumes of the year. All carriers expect even higher volumes due to COVID-19. To avoid complaints, make sure to communicate realistic ordering deadlines to your customers.
Christmas ordering deadlines (before 16:00 Amsterdam time) for 2020 are:
*Rest of EU-countries: Austria, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Greece, Hungary, Ireland, Latvia, Lithuania, Luxembourg, Malta, Poland, Portugal, Romania, Slovakia, Slovenia, Sweden