Within several hours of the backlash, Instagram conceded and attempted to clarify its intent.

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"This entry into Mexico occurred within several hours of Summers being identified in the media as the person responsible for the kidnapping, " a federal complaint stated.

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Within hours of the announcement, several online petitions to save the service had gotten thousands of signatures.

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Within less than 24 hours of the workshop, several participant companies offered to deploy oceanographic sensors from their vessels in areas where more data is needed.

UNESCO: Ocean industries and the scientific community join forces to monitor the ocean | United Nations Educational, Scientific and Cultural Organization

Usually I got very useful replies within minutes, with more still coming for up to several hours later.

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They could wait however long it takes to see an ER doctor (likely several hours) or the ER staff would set them up with an appointment with a primary care physician within 24 hours.

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