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I can only find 9時 in the online NHK日本語発音アクセント辞典 which is only listed as
くじ{HL}, and I assume for 9時半 it's くじはん{HLLL}:
[1](https://youtu.be/LrglvEEieoY?t=371),
[2](https://youtu.be/Hu8tBzAYn0U?t=247),
[3](https://youtu.be/a7X3UWW01Nk?t=2060)

But I seem to also have heard くじはん{LHLL}. (or is it くじはん{LHHL}?):
[4](https://youtu.be/YYD_BQfqmCI?t=780),
[5](https://youtu.be/pw55c84GAWk?t=192)

Does 標準語 have both and if so what other factors are there that determine which
one to use?
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2022-06-02T09:09:08.003
94801
2022-06-02T10:55:05.390
2022-06-02T10:32:37.827
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question
pitch-accent
9時半, 9時 pitch accent
The position of the accent shifts like this.

  * くじ{HL}
  * はん{HL}
  * くらい{HLL} (or ぐらい{HLL})
  * はんくらい{HHHLL} (or はんぐらい{HHHLL})
  * くじはん{LHHL} [#3, #4, #5]
  * くじはんくらい{LHHHHLL} (or くじはんぐらい{LHHHHLL}) [#1]

Only #2 is a bit irregular where くじ{HL} and はんくらい{HHHLL} are put together with
the accent of each portion retained. He may have wanted to emphasize はん.

#3 may sound a bit like くじはん{HHHL}, but it’s still recognized as くじはん{LHHL}.

* * *

[Edit]

Theoretically, はんくらい is はんくらい{LHHLL}, but pitch doesn't rise on ん in standard
Japanese. So it becomes はんくらい{HHHLL} (if we have to use this notation).
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2022-06-02T10:47:27.067
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2022-06-02T10:55:05.390
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answer