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I will be convenient to add an optional flag (-hr, --human-readable) to enable a human-readable format showing the delay in ms (i.e. 366 ms ago).

This dealy is computed as (now - timestamp), where they are both represented as Unix time (UTC based).

Public Interfaces

A new optional flag called --human-readable with the shortcut -hr will be added to the kafka-metadata-quorum tool.

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Using a date/time formatting (i.e. May 10, 15:54:55 UTC) won't add much information in most cases and you will have to deal with locale.