24H (EP)

24H is the second Japanese-language extended play (EP) by South Korean boy group Seventeen. It was released on September 9, 2020, through Pledis Japan.

Background and release
After releasing their second Japanese single "Fallin' Flower" in April 2020, Seventeen announced their second Japanese EP 24H, which was to be promoted with a title track of the same name as a pre-release single. The song "24H" was released on Japanese radio through the station Tokyo FM School of Lock on August 18. It was digitally released alongside its accompanying music video on August 24.

The EP 24H was released on September 9, 2020.

Commercial performance
In Japan, 24H accumulated a pre-order volume of 450,000 copies and sold 240,000 copies during its first week of release. It debuted at number one on the Oricon Albums Chart for the week of September 7 to 15, 2020. Following Seventeen's other successes atop the chart with their Korean-language EPs You Made My Dawn and Heng:garæ, as well as their third studio album An Ode, this achievement marked Seventeen as the first foreign international male artist to top the Oricon weekly album chart with four consecutive albums.

Accolades
The EP was awarded as one of the records selected for The Best 3 Albums (Asia) category at the 35th Japan Gold Disc Awards.