| hours after midnight; early morning hours: We danced into the small hours. |

| small hours pl.n. The early hours after midnight. |
small hours
Also, wee hours. The hours following midnight, as in I stayed up working through the small hours, or The parents didn't come home until the wee hours. The adjectives small and wee both refer to the low numbers of those hours (one o'clock, two o'clock, etc.). [c. 1830]