I have a class as follows:

public class InstantWrapper {
    @JsonFormat(without = Feature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS)
    private Instant myInstant;

    public Instant getMyInstant() { return myInstant; }
    public void setMyInstant(Instant myInstant) { this.myInstant = myInstant; }
}

When serialising, the result uses milliseconds since the epoch; however, when deserialising, it is interpreted as nanoseconds.

I understand that the JavaDoc says "Override for SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS" (saying nothing about DeserializationFeature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS), however in my view it's undesirable that a round-trip modifies the data when this option is used.

Is there a way (other than writing my own deserialiser) to override the ObjectMapper's settings so that timestamps are interpreted using milliseconds?