We submit sales reports to SoundScan in North America, Official Charts in the UK, ARIA Charts in Australia, and The Official New Zealand Music Charts. Fresh sales information is delivered daily, shortly after midnight UTC.
Nielsen SoundScan is the company behind the Billboard charts, the official charts of the United States. SoundScan also hosts charts for Canada, as well as one for international singles. Their digital week runs Friday through Thursday, and their physical week is Tuesday through Monday. If you're reporting physical sales separately, you'll need to mark your pre-orders and first day sales as shipped before the first Tuesday after the album's release.
The official UK charts are known as, ahem, Official Charts. We send our sales information to them directly.