at the crack of dawn

/at ðə kɹˈak ɒv dˈɔːn/

/æt ðə kɹˈæk ʌv dˈɔːn/

[phrase]

[PHRASE]

at a very early time in the morning when the Sun is just rising

What is the origin of the idiom "at the crack of dawn" and when to use it?

The exact origin of the idiom "at the crack of dawn" is uncertain. However, it is believed to have originated from the association of the word "crack" with the first light of dawn breaking through the darkness. The crack refers to the initial small opening or burst of light that occurs as the sun begins to rise. It is frequently used when discussing morning routines, such as waking up early for work, exercise, or personal rituals.

Examples

1. We were up at the crack of dawn.

2. We'll have to leave at the crack of dawn.

3. We got up at the crack of dawn to go fishing.

4. I often start work at the crack of dawn when there is a big order to get out.