Seishun Dokei Explained

Seishun Dokei
Cover:	Seishun Dokei cover.jpeg
Caption:	Cover of the regular edition.
Type:	single
Artist:	NGT48
A-Side:	Seishun Dokei
Genre:	J-pop
Label:	Ariola Japan
Next Title:	Sekai wa Doko Made Aozora na no ka?
Next Year:	2017

is the first single by Japanese idol girl group NGT48. It was released on April 12, 2017.^[1] It reached number-one on the weekly Oricon Singles Chart with 160,271 copies sold.^[2] ^[3] It was also number-one on the Billboard Japan Hot 100.^[4]

Chart performance

Chart	Peak	Debut Sales	Sales Total
Weekly Singles Chart	1	160,271	207,626
Monthly Singles Chart		style="text-align:center;"	-->

Web site: 青春時計(TypeA). 20 April 2017. Oricon News. Oricon. Japanese.
Web site: 週間 CDシングルランキング 2017年04月24日付. 20 April 2017. Oricon News. Oricon. Japanese.
Web site: Oricon Weekly Charts for 4/10 ~ 04/16. 19 April 2017. 20 April 2017. tokyohive. 6Theory Media, LLC.
Web site: Billboard Japan Hot 100 2017年4月24日. 20 April 2017. billboard-japan.com. Billboard Japan. Japanese.
Web site: Radio Songs 2017年4月24日. 20 April 2017. billboard-japan.com. Billboard Japan. Japanese. dead. https://web.archive.org/web/20170421001134/http://www.billboard-japan.com/charts/detail?a=radio_songs&year=2017&month=04&day=24. 21 April 2017.
Web site: Top Singles Sales 2017年4月24日. 20 April 2017. billboard-japan.com. Billboard Japan. Japanese.