Regarding panda viewing times at Ueno zoo:

The zoo has made the time when you can see the panda two and a half hours long(er) so that lots of people can see it.

From the context it's clear to me that this is supposed to be 2.5 hours longer rather than 2.5 hours long, but how would the grammar change to express a fixed period of 2 hours rather than an extension of two hours?

I guess I would have expected the current sentence to mean long and would have expected something like 前のより長くしました for longer.

  • 1
    Related: Questions about Comparatives
    – G-Cam
    Commented Feb 2, 2018 at 3:44
  • Totally unrelated but... is シャンシャン (香香) spelled as "Shan Shan" or "Xiang-Xiang" in イギリス? I'm just curious... ^^
    – chocolate
    Commented Feb 3, 2018 at 16:26
  • 1
    @Schokolade Suprisingly difficult to find stories in English newspapers. This popular paper calls it xiang xiang: telegraph.co.uk/news/2017/12/19/… Commented Feb 4, 2018 at 9:25

1 Answer 1


As 長くする means 'to lengthen', I do not see any ambiguity in this phrasing.

長くなる would be used to say 'become lengthened'. By comparison to 長くする the only real difference is between direct and indirect (transitive/intransitive) usage.

前より could be used, but would be unnecessary, as we can already glean that inference from the context.

If, on the other hand, you wanted to say that they 'changed it to' a viewing period of (only) 2.5 hours, you would say 「見ることができる時間を2.5時間にしました。」.

To say that they 'shortened the time' by 2.5 hours: 「見ることができる時間を2.5時間短くしました。」or 「~時間を2.5時間短縮しました」 or 「~時間が2.5時間短縮されました。」.

So, ultimately, the translation should read more directly as:


So as to increase attendance (viewership), the zoo has lengthened the hours when 'Shan-Shan' can be viewed by 2.5 hours.

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    As the zoo has seen high attendance って「動物園はたくさんの人に見てもらうために」って意味なんですか? ここの「ために」は so that (they) can~~ (「理由」じゃなくて「目的」)ですけど・・ "So that the zoo can have more people see/watch (the panda)"(直訳) って、言い換えると As the zoo has seen high attendance になるんでしょうか・・・
    – chocolate
    Commented Feb 2, 2018 at 13:17
  • @Schokolade Thanks for pointing that out. I had a brain fart.
    – BJCUAI
    Commented Feb 2, 2018 at 15:45

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