Membership query view displays time stamp for membership expiration date this only occurs when using fields in Memberships\Members\Constituent\Membership\Expiration Date. This does not occur with the Memberships\Expiration Date field
We are currently evaluating this issue for a fix in a future release.
Steps to Duplicate
1. Create a new constituent record 2. Add a new membership to this new constituent 3. Go to Analysis\Information Library\Add an ad-hoc query 4. Select Memberships as the source view 5. Choose the Memberships\Expiration date field to display, and for faster results add a specific constituent in the area where it says Include records where: 6. Preview the results and see the expiration date with no time stamp 7. Now go back to the query and choose Memberships\Members\Constituent\Membership\Expiration Date to display and now see expiration date with a time stamp.