"24 Hours" (Korean: 24시간이 모자라; RR: Isipsasigani Mojara; lit. "24 Hours Is Not Enough") is the solo debut single by South Korean singer Sunmi. It was released by JYP Entertainment on August 26, 2013. It was included in Sunmi's debut EP Full Moon which was released six months later.

The song marks "the very first project in 13 years that J. Y. Park went all in on, since Park Ji-yoon's "Coming-of-Age Ceremony." He wrote and composed the song while also overseeing the dance, the music video and the choreography.^[1]

The song is described as "a hard-hitting pop track enhanced with a tango-inspired section."^[2]

The music video, directed by Naive Creative Production,^[3] was released on August 20, 2013, six days before the single's release. As of July 2020, it has over 13.5 million views on YouTube.^[4]

Credits adapted from liner notes from Full Moon. Recorded at JYPE Studios.^[5]

• Sunmi – vocals, background vocals
• J. Y. Park — songwriting, composing, producing, arrangement, all instruments, background vocals
• Hong Ji-sang — arrangement, all instruments, programming
• Kim Yong-woon — recording
• Lee Jae-won — recording
• Phil Tan — mixing
• Daniela Rivera — mixing
• Geoff Pesche — mastering

The fourteenth episode of the YouTube Premium series Top Management was named after the song.