The Mac App Store assigns each territory of the world to a specific time zone. This time zone will be used to determine whether your sale takes place on December 20, 2011, and therefore whether your sale is donated to charity: water, if you purchase through the Mac App Store.
| Territory | Time Zone |
| US, Canada, Latin America | Pacific Time (PT) |
| Europe, Middle East, Africa, Asia Pacific | Central Europe Time (CET) |
| Japan | Japan Standard Time (JST) |
| Australia, New Zealand | Western Standard Time (WST) |