Meaning of the word "the darkest hour is just before the dawn" in English

What does "the darkest hour is just before the dawn" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

the darkest hour is just before the dawn

US /ðə ˈdɑːrkɪst ˈaʊər ɪz dʒʌst bɪˈfɔːr ðə dɔːn/
UK /ðə ˈdɑːkɪst ˈaʊər ɪz dʒʌst bɪˈfɔː ðə dɔːn/
"the darkest hour is just before the dawn" picture

Idiom

things often seem at their worst right before they start to improve

Example:
I know you're struggling with your business, but remember that the darkest hour is just before the dawn.
Don't give up hope now; the darkest hour is just before the dawn.