code: func (jt *Time) UnmarshalJSON(b []byte) error {
  	var s string
  	if err := json.Unmarshal(b, &s); err != nil {
  		return err
  	}
  
  	var err error
  	jt.Time, err = time.Parse(time.RFC3339Nano, s)
  	return err
  }
docs: // MarshalJSON implements json.Unmarshaler.