Does the term within 7 days mean include the 7th day? There's also the perennial question of whether the last day ends on the multiple of 24 hours from the time when the deadline was given, if it means midnight of that day, or closing time of that day, or what And does "7 days" mean 7 calendar days, or 7 business days? Etc
time - English Language Usage Stack Exchange The potential ambiguity is because in "within 10 days before the flight", the following noun phrase "10 days before the flight" has a form that would generally cause it to be interpreted as a point in time rather than a range
Vacation days or days off - English Language Usage Stack Exchange In most organizations, vacation days are usable at the employee's discretion, up to a certain yearly limit Days off is a more informal phrase that includes a variety of kinds of paid-not-to-work days, including sick leave, maternal paternal leave, floating holidays, national holidays, etc Vacation days are a subset of days off
In the upcoming days - English Language Usage Stack Exchange In Australian English, "in the upcoming days" sounds strange "In the coming days" is acceptable but probably too formal, I agree with @BoldBen's comment that "In the next few days" is a better choice
Logical meaning of within 30 days compared to in 30 or fewer days . . . I would read the first as referring to a deadline, the second referring to a total accumulation of days spent For example, "This project must be finished within 30 days" is different than "This project must be finished in 30 days or fewer " - The first establishes a "date" the second just establishes a duration or level of effort
meaning - Past few days or the past few days? - English Language . . . So when we say 'the past few days' we mean the complete set of 'past few days', not just some of them, and which means this time phrase matches the tense Do we use the phrase 'past few days' on its own? Highly unlikely, it lacks a sense of which days
grammar - every two days and every second day - English Language . . . Neither of your phrases describes case 3 because the boundaries between the pairs of days are artificial If you do something on day 2 and also on day 3 then you have done it every day for days 2 and 3 If you then leave it until day 6 you have only done it once in days 3, 4 and 5 so you have not done it "every second day" or "every two days" except on average If you say you are doing
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