Function decode_instant_from_duration 

pub fn decode_instant_from_duration(duration: Duration) -> Instant

Available on crate feature std only.

Decode an Instant from a Duration.

Accepts non-canonical input without panicking. If the encoded Duration is so large that instant_now + delta would overflow Instant’s internal representation, the result saturates at instant_now rather than panicking. This is important because the function sits on the serde deserialization path — a malformed or adversarial encoded value must not crash the process.