Java won't let me time travel

(This isn’t an actual question, this is just a little joke)

In my game I’m trying to go back in time by a few seconds but I keep getting this error:


java.lang.IllegalArgumentException: timeout value is negative
	at java.lang.Thread.sleep(Native Method)
	at Ideone.main(Main.java:14)

My code:


try {
    Thread.sleep(-1000);
} catch (Exception ex) {
    ex.printStackTrace();
}

Thx in advance…