I am required to submit a certain form within 30 days of [a certain date in the future]. I suspect that the form's author actually meant to say something like at least 30 days before [a certain. 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.
Understanding the Context
I understand that you can say, within 30 days of receiving your application, but i am seeing more and more within 30 days after your application is received. Is the latter grammatical? Hence, if within two working days were said on a thursday, it would probably mean before the end of monday. In conclusion, the expression within the next two days does not have an exact.
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