.appendValue(MINUTE_OF_HOUR, 2)
      .optionalStart()
      .appendLiteral(':')
      .appendValue(SECOND_OF_MINUTE, 2)
      .optionalStart()
      .appendFraction(NANO_OF_SECOND, 3, 3, true)
      .toFormatter()

  private val offset = ZoneOffset.systemDefault()

  override fun format(record: LogRecord): String {
    val message = formatMessage(record)

    val time = Instant.ofEpochMilli(record.millis).atZone(offset)