# createdAt Wall-clock time at which this value was constructed. ``` let createdAt: Date ``` ## Discussion Defaults to `Date()` at init time. Useful for TTL tracking in long-running sessions that create many short-lived services. Does **not** survive a Tor restart — [`TorControlClient`](/documentation/Tor/TorControlClient) does not retrieve the original creation time when re-adopting a service. - Stability: immutable.