Assuming it's the same as on German server it should be the following:

Monday: 2x Exp for sweeping
Tuesday: 2x Exp for Kakashis Training
Wednesday: 2x Group Contributions from convoy and plunder
Thursday: 2x food from Fukurokumaru
Friday: 2x coins from Fukurokumaru
Saturday: 2x coins from convoy and 2x items from plot instances
Sunday: 2x coins(?? might be exp) from ninja quiz and 2x items from plot instances

Edit: This info is taken from a fairly old german wiki entry. So I'm not 100% sure it's completely correct.