Possible Duplicate: Is “in ” various from “within ”?

The title claims it all: when an author says "within 7 days", walk the author mean encompass the 7th day? Or, walk it average up to but not consisting of the 7th day?



I think within seven days includes the saturday day. I take that to median "by the end of the saturday day."

For example, the American Red overcome blood donation website has actually this line:

• Donated platelets need to be used within five days of collection.

You are watching: What does within 14 days mean

I take that to mean the platelets can be offered on job 1, 2, 3, 4, and 5. Yet on work 6, they need to be discarded.

(The fact that girlfriend were prompted to ask her question, however, is why I always state specifically that I want something went back to me by the finish of the service day ~ above a particular date.)


Whenever I have a question like this I try to rest it down right into a smaller case and then extrapolate. If i ask to have something under "within a day" I typical 24 hrs from now - this day is work 0 and also tomorrow is day 1, the day the it is due. So "within 7 days" method it is early out on day 7, counting this particular day as job 0.


I believe the price is that ordinary language is merely not precise enough come say, without a small extra acrobatics. You can ask the very same question around other time limits, such together "by Friday" - does this median that you have until midnight on Friday? i think over there is a propensity (here"s the acrobatics) to use the next smaller unit when precision is necessary, for instance "48 hours". So, if you wanted to specify exactly one week, you might say "168 hours".


It"s ambiguous. I"d say "within 7 days" SHOULD typical within 7 x 24 hrs from now, so if at noon top top Monday I"m said "this is due within 7 days" the would average by noon the the following Monday. But people often take today to it is in the an initial day the the count, so if top top Monday someone claims "within 3 days" they room thinking job 1=today, Monday; job 2=Tuesday, job 3=Wednesday.

There"s additionally the perennial inquiry of even if it is the last day ends on the many of 24 hours from the time when the deadline to be given, if it way midnight of the day, or closing time of that day, or what.

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And walk "7 days" median 7 calendar days, or 7 business days?


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