the darkest hour is just before the dawn

/ðə dˈɑːkəst ˈaʊəɹ ɪz dʒˈʌst bɪfˌɔː ðə dˈɔːn/

/ðə dˈɑːɹkəst ˈaɪʊɹ ɪz dʒˈʌst bɪfˌoːɹ ðə dˈɔːn/

used to suggest that when things seem to be at their worst and most difficult, it is often a sign that a positive change or breakthrough is about to happen

Examples

1. but then I remembered that the darkest hour is just before the dawn - and sure enough, I landed my dream job soon after.