When using the Snapshots List API (https://cloud.google.com/compute/docs/reference/rest/v1/snapshots/list) either through REST or through the Google Cloud SDK, providing a timestamp filter on “creationTimestamp” fails with a 400 error: “Invalid value for field ‘filter’: ‘creationTimestamp \u003c "2023-10-24T15:14:39.543-07:00"’. Invalid list filter expression.”
For example with a filter like this: creationTimestamp < "2023-10-24T15:14:39.543-07:00".
This happens when using a “<” or “>” filter, the only timestamp filter that works is “=”, which is not useful.
This behavior is not what is specified in the documentation, this appears to be an API bug.