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If I say:


It means I cannot participate after the 16th.

However, what about on the 16th? Is it also implied that I cannot participate on the 16th either? Or, that I can participate on the 16th, but not after?

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Not a duplicate, but related: japanese.stackexchange.com/questions/1765/… – snailplane Dec 4 '12 at 4:46
up vote 18 down vote accepted

Yes, it is inclusive. All the similar phrases that use 以 are inclusive: 以内、以前、以上、以下、以来. However, unfortunately a lot of people do not know this and use them carelessly without thinking.

If you wanted to express "After the 16th but not including it", you could say:


However, I would be more inclined to say:


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I trust your answer. By the way how would you express "After the 16th but not including it" ? – wil Dec 4 '12 at 5:45
In your particular example, you could say: 16日の翌日から参加できません。However, I would be more inclined to say 17日以降参加できません。 – Jesse Good Dec 4 '12 at 7:11
Thanks for your input. – wil Dec 4 '12 at 10:36
Another way to say “I cannot participate after Feb. 16, exclusive” is 16日までしか参加できません: “I can participate only until Feb. 16, inclusive.” – Tsuyoshi Ito Feb 11 '13 at 2:19

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