Learn English – “You need to undergo the medical tests within 6 months from the departure date”

prepositionsword-choice

I want to make a statement that means you need to undergo the medical tests not before 6 months from the date of departure.

In other words, the medical tests should not be taken earlier than 6 months or trying again "within 6 months period prior to the departure date".

I am confused as to which one is correct:

  1. You need to undergo the medical tests within 6 months from the departure date.
  2. You need to undergo the medical tests not before 6 months from the departure date.
  3. You need to undergo the medical tests within 6 months period prior to the departure date.

Please help with the correct wording. Emphasis used only to illustrate the troublesome part.

Best Answer

The closest choice would be:

  1. You need to undergo the medical tests within 6 months period prior to the departure date.

However, to be clear and easy to understand, you would better rewrite it as:

You need to undergo the medical tests within the period of six months prior to the departure date.

(Numbers less than thirteen are usually spelt out).