“很晚”的意思是时间已经过去很多，通常指夜里很深或者比平常的时间迟。

"很晚" means that a lot of time has passed, usually referring to late at night or later than usual.

我们常说“很晚了，快睡吧”，也可以说“他很晚才回家”。

We often say "很晚了，快睡吧" (It's very late, go to sleep), and can also say "他很晚才回家" (He came home very late).