by Menno » Mon Feb 03, 2014 5:06 am
Oricon publishes the chart between 18:00 and 19:00 JST on it's website. Usually it's already available about 1 hour earlier for their paid subscribers, that's why 2ch usually knows it before oricon.co.jp is updated.
The new releases (almost) always have an official release date on Wednesday, but the CDs are always on sale in the shop a day earlier on Tuesday. The weekly chart which is always published on Tuesday are the sales from Monday to Sunday, the daily chart on Monday are the sales from Sunday. The daily chart on Tuesday the sales on Monday.
The 1st day chart that Oricon publishes on Wednesday are the following sales:
- the Tuesday sales in the shops, including paid reservations/pre-orders.
- shipped preorders from internet shops.
- pre-release event sales.
Since Oricon depends on the retailers to send in the sales data it's not always the case that event sales are counted on the next day chart. If the sales are done via the standard cash register in one of the big chain shop they are automatically counted. But if the sales are done via a special sales counter at the event they will have to be added manually, that's why there's sometimes a delay.