« first day (8 days earlier)      last day (590 days later) » 

10:50 AM
Yeah, the Data Explorer doesn't have any association information, so EmailHash would be the way to go. You could get associated accounts from the API (or the profile page), and then manually enter IDs for given sites into your query, but that's rather tedious. — Tim Stone Oct 16 '11 at 6:43
I've got a query to generate the comparison of EmailHashes (data.stackexchange.com/stackoverflow/query/69700/…) and the resulting query (data.stackexchange.com/stackoverflow/query/69701/…), which is of course interesting to run from different base sites :-)
 

« first day (8 days earlier)      last day (590 days later) »