Is there any scm command which can give details about a changeset ?

My requirement is to group all change sets, which are delivered together in RTC by a user by time between 2 builds.

As build create a snapshot, I am planning to use scm compare .. snapshot command to get list of change sets, But it don't give the details like date with timestamp, user who changed. Is there any scm command which can help in getting the details of changesets.

To explain my scenario in detail, Here is an example.

Developer 1 Updated file : at a give time
   a.txt
   b.txt

Developer 2 updated: after Developer 1 has changed
   c.txt
   a.txt

Developer 1 again updates following files.
    b.txt
    c.txt

Is there any SCM command which can give me details of these changesets ? Like Developer name, date with timestamp