Oh dark thirty noun phrase
The word "oh" is a way of expressing the number zero.
Used to indicate a period of time in the early morning after midnight but before sunrise
It’s a nuisance having to get up at oh dark thirty.
If you want to reach the destination on time, you will have to depart at oh-dark-thirty.
Soldiers will march at oh dark thirty.
Very early or very late.
When you experience extreme and undesirable situations, it is probably essential to take extreme actions
I knew I would regret after I did that but I had no other choice. Drastic times call for drastic measures!