Referring to cherry blossoms:

After they start to bloom, from one week ???? lots of flowers will bloom and (look) pretty.

I'm struggling to understand the part in bold. If I read it literally I get "When it makes around 10 days from/after a period of one week". Logically, therefore I get "Lots of flowers will bloom around 17 (10+7) days after they first start". Obviously I think my analysis is nonsense.

My guess is that it reads "Lots of flowers will bloom after a period of around 7 to 10 days from when they first start". Is this correct? Is there a way to break it down logically?

More generally what are the common ways to express an interval of time after which something will happen? I would have tried something like:


but that feels incomplete. It seems to be lacking the idea of later. I know I can says "2 days later" as 2日後に. I guess "around 2 days later" would be 2日後ぐらいに, but I expect 7日と10日後ぐらいのあいだに is completely wrong.

  • My guess would be "Starting from one week, up to ten more days", so i'd assume "10 to 17" days. Commented Mar 19, 2018 at 20:44
  • Related: japanese.stackexchange.com/q/21679/5010
    – naruto
    Commented Mar 20, 2018 at 1:34
  • 2
    @l'électeur I wonder why you deleted your answer? It looks good to me. I would have ticked it earlier, but this is the first time I've logged on since I wrote the question. Commented Mar 20, 2018 at 16:18
  • Just undeleted it after minor editing.
    – user4032
    Commented Mar 21, 2018 at 0:35

1 Answer 1



I will start with the word that you did not even mention -- 「する」. In this context, it means "to pass"; It is often used to express the passing of a specific length of time. Whether or not one actually uses the verb "to pass" in one's translation is a totally different matter. Personally, I would not.

Next, the 「と」 is conditional, of course. Again, that does not mean one should use "when" or "if" in one's translation. I would not use it.

「Time Length + ぐらい + する + と」


"within approximately (time length)"

In this case, the time length mentioned happens to have a range of 一週間 to 10日. 「から」 can singlehandedly express a temporal or spatial "range". I mention this because there might be people who thought that 「から」 could only be used to describe a starting point.

Thus, my own TL of 「1週間から10日ぐらいすると」 would be:

"within approximately a week to 10 days"

Being a Japanese-speaker, I have no idea where you would get the idea of "17 (7 + 10) days", but I can assure you that that is not what 「1週間から10日」 means regardless of the context that the phrase appears in.

(You mentioned 「7日と10日ぐらいのあいだに」, but if someone said that to me, I would probably think he was trying to say "between the 7th and 10th of a certain month".)

The key word here is 「から」 for expressing a range. 「と」 seems quite out of place to my Japanese-speaking brain. I could not use a 「と」 if I had to rephrase 「1週間から10日ぐらい」. It can be rephrased to 「7日から10日ぐらい」, using 「一週間」 would sound more natural.

"Within approximately a week to 10 days after they start blooming, they will bloom in abundance and look beautiful."

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