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I came across this idiom in a title, in association with a noun:

[noun of a product category] — The need of the hour

What does this mean?

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It's not an "idiom" - just a rather lame pun on hour of need –  FumbleFingers Jul 13 '13 at 20:25
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5 Answers

up vote 7 down vote accepted

"Of the hour" is an expression used to indicate "of the present (short) period":

  • Man of the hour
  • Need of the hour
  • etc (?)

It doesn't literally mean an hour, but it does imply a short period of time.

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Thank you for your answer! Now it's clear –  Luc125 Dec 29 '11 at 10:55
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Hour here just means a particular point in time. The need of the hour simply refers to some need at some point in time.

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Its idiomatic mean " requirements at a given time" according to RPSC

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What is RPSC? –  KitFox Mar 17 at 1:28
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Need of the hour has implication that it needs to be high priority.

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Could you provide any references to back your answer? It's a little low on content. –  Mari-Lou A Apr 11 at 11:19
Example : for the people who do not know to differentiate between a "your" and a "you're", knowledge of grammar is the need of the hour. –  user3523123 Apr 11 at 11:54
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Most essential need or requirement.

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