Kostyantyn Krakovych kkrakovych

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

	// Scheduled thread pool creation.
	@Bean(destroyMethod = "shutdown")
	public ScheduledExecutorService taskExecutor() {
	return Executors.newScheduledThreadPool(10);
	}

	// Wait for all threads to be terminated.
	public void awaitTerminationAfterShutdown(ExecutorService threadPool) {
	threadPool.shutdown();
	try {