import java.time.Duration;
import java.time.Instant;
import java.time.format.DateTimeFormatter;
import java.time.LocalDateTime;
LocalDateTime.parse("2018-02-09T18:34:08.369")
LocalDateTime.parse("1970-01-01T20:00"))
Instant beginTime = Instant.now();
Instant endTime = Instant.now();
LOGGER.info("took milliseconds total: {}", Duration.between(beginTime, endTime).toMillis());
.format(DateTimeFormatter.ISO_DATE));