It means that if the situation is as bad as possible, or almost as bad as possible, then it is almost ready to get better.
EDIT.
The quote would have originally came from the fact that it is always darkest the hour before the sun rises. The metaphorical meaning would be; when your situation is as bad(dark) as possible, it will soon be better then ever(light).
This phrase means that things may seem at their worst just before a situation starts to improve. It's a reminder to stay hopeful even during tough times because better days may be right around the corner.
it means problems seem to be at their worse before getting to a solution
Expression things look bleakest just before they get better
This phrase implies that after facing difficult times, there is hope for better times ahead. It suggests that even after experiencing the lowest point, there is a chance for things to improve and for a new beginning to emerge.
Before the sun rises at the start of a day.
It's the literal use of the word "dawn," which is early morning, just before sunrise.
The darkest yellow in urine means many antibodies and antigens have been killed.
In military terms it is to stand read for an attack, probably before dawn or after dark
the darkest black
it would have to be dawn because they hang out a lot. Dawn they always high 5 each other ;) hmmm just beacause they hang out allot or high fiving each other, does not mean anything. i say he does not like misty or dawn. i say it may for many reason, for people who just started watching the show i rec amend that you watch every episode and movie before you make your "opinion" on who he likes.
The first moon, where the sky is darkest.
I'm pretty sure Carlisle has always been his "dad" unless you mean actor.
Strictly speaking dawn is "l'aube". Il fait jour could mean dawn is breaking, or dawn has broken, it is daylight.