the amazon statistics are pretty crappy as some you you might know (at least here in germany). so when you want to optimize your campaigns you need more data. i thought about how to get the conversion-time. you can create several tracking-ids on amazon. so i create one for eg. every hour. like myid1000-21, myid1001-21, myid1002-21, ... so when i start a campaign i redirect the link to my rewrite-script with "myid10xx-21" as the tracking-id. the script replaces the "xx" with the hour of the day. so the next day you see in the amazon statistics at what time the conversion was generated. maybe this is helpful for some of you. have a nice day!