Graphql - How to figure out when the request for a PR review was made?

Essentially, I’m able to get the list of the events for a given PR, e.g.

timelineItems(first: 100) {
          updatedAt
          nodes {
            __typename
          }
        }

But is there a way to figure out when did each of these events happen?
Particularly, I’m looking for information when the REVIEW_REQUESTED_EVENT happened, i.e. when did the author request the review.

I have an updatedAt field, but it’s against the timelineItems so, I’d say this is when the collection of events was updated last.

Found it in case someone else is interested:

timelineItems(first: 1, itemTypes: REVIEW_REQUESTED_EVENT) {
          nodes {
            ... on ReviewRequestedEvent {
              __typename
              createdAt
            }
          }
        }