Question: Whose birthday falls closer to the end of the calendar year, Kenji Miyamoto or Yuzuru Hanyu?

Context articles: Nakako Tsuzuki
Rie Arikawa
National Mathematics Year
Calendar year
List of Yuri on Ice episodes
Yuri on Ice
Kenji Miyamoto (politician)
Half-birthday
Kenji Miyamoto (figure skater)
Yuzuru Hanyu

Nakako Tsuzuki (都築 奈加子 , Tsuzuki Nakako , born October 03, 1975 in Tokyo) is a Japanese retired ice dancer.
 She is a multiple Japanese national champion and national medalist with four partners.
 She has competed with Kazu Nakamura, Yuri Razguliaiev, Rinat Farkhoutinov, and Kenji Miyamoto.
 She retired following the 2005/2006 season.
Rie Arikawa (有川 梨絵 , Arikawa Rie , born January 16, 1981) in Kyoto, Japan is a Japanese retired ice dancer.
 She competed with Kenji Miyamoto.
 They are two time Japanese national champions.
 Their highest placement at an ISU championship was 8th at the 2002 and 2003 Four Continents Championships.
 Arikawa retired from competitive skating in 2003.
 She currently works as a coach.
In India and in Nigeria the year 2012 CE is celebrated and believed as the National Mathematics Year.
 In India, the National Mathematics Year is celebrated as a tribute to the mathematical genius Srinivasa Ramanujan who was born on 22 December 1887 and whose 125th birthday falls on 22 December 2012.
 In Nigeria, the year 2012 is observed as National Mathematics Year as part of the Federal Government’s effort to promote and popularize the study of mathematics.
Generally speaking, a calendar year begins on the New Year's Day of the given calendar system and ends on the day before the following New Year's Day, and thus consists of a whole number of days.
 A year can be measured by also starting on any other named day of the calendar, and end on the day before this named day in the following year.
 This may be termed as a "years time" but not in practice or an accepted means to term a Calendar year.
 To reconcile the calendar year with the astronomical cycle (which has a fractional number of days) certain years contain extra days.
"Yuri!!!
 on Ice" (ユーリ!!!
 on ICE ) is a Japanese sports anime television series about figure skating.
 It is produced by MAPPA, directed by Sayo Yamamoto and written by Mitsurō Kubo.
 The character designs were by Tadashi Hiramatsu, and the music was composed by Taro Umebayashi and Taku Matsushiba.
 The figure skating choreography was by Kenji Miyamoto.
 It revolves around the relationships between Japanese figure skater Yuri Katsuki; his idol, Russian figure-skating champion Victor Nikiforov, and up-and-coming Russian skater Yuri Plisetsky; as the two Yuris take part in the Figure Skating Grand Prix, with Victor acting as coach to Yuri K.
Yuri!!!
 on Ice (Japanese: ユーリ!!!
 on ICE ) is a sports anime television series about figure skating.
 The anime was produced by MAPPA, directed by Sayo Yamamoto and written by Mitsurō Kubo.
 Character design was by Tadashi Hiramatsu, and its music was composed by Taro Umebayashi and Taku Matsushiba.
 The figure skating was choreographed by Kenji Miyamoto, who also performed routines himself which were recorded and used as skating sound effects.
 The series premiered on October 6, 2016 and ended on December 22, with a total of 12 episodes.
 A "Yuri on Ice" feature film is currently in production.
 The series revolves around the relationships between Japanese figure skater Yuri Katsuki; his idol, Russian figure-skating champion Victor Nikiforov, and up-and-coming Russian skater Yuri Plisetsky; as Yuri K. and Yuri P. take part in the Figure Skating Grand Prix, with Victor acting as coach to Yuri K.
Kenji Miyamoto (宮本顕治 , "Miyamoto Kenji" , October 17, 1908 – July 18, 2007) was a Japanese communist politician and Japanese Communist Party (JCP) leader from 1958 until 1977.
A half-birthday is a day approximately six months before or after the anniversary of a person's birth.
 It is sometimes marked by people whose birthday falls near major holidays, the celebration of which may overshadow celebration of the birthday.
 It may also be marked by students whose birthday does not occur during the regular school year; a half-birthday allows a celebration with friends at school, with half a cake.
Kenji Miyamoto (宮本 賢二 , Miyamoto Kenji , born November 6, 1978 in Himeji, Hyōgo, Japan) is a Japanese retired ice dancer who currently works as a coach and a choreographer.
 He teamed up with partner Rie Arikawa in 1995.
 Together, they are two time Japanese national champions.
 After Arikawa's retirement from competitive skating in 2003, Miyamoto teamed up with Nakako Tsuzuki.
 They competed together from 2003 through 2006.
 They are three time Japanese national silver medalists.
 Miyamoto now choreographs for ice shows and for competitive programs.
 He has choreographed show programs for Shizuka Arakawa, Daisuke Takahashi, Akiko Suzuki, and Yuzuru Hanyu.
 He also did the choreography for the programs in the figure skating anime, Yuri on Ice.
Yuzuru Hanyu (羽生結弦 , Hanyū Yuzuru , born 7 December 1994) is a Japanese figure skater who competes in the men's singles discipline.
 He is the 2014 Olympic champion, a two-time World champion (2014, 2017), a four-time Grand Prix Final champion (2013–2016), a three-time Four Continents silver medalist (2011, 2013, 2017), the 2010 World Junior champion, the 2009–10 Junior Grand Prix Final champion, and a four-time Japanese national champion (2012–2015).
 He has also medaled at three other World Championships, taking bronze in 2012, and silver in 2015 and 2016.