Named Entity Recognition 25.4
Named Entity Recognition User and Programming Guide

# Simplified Grammar File Containing Patterns to Match Times of Day

NOTE: The following grammar file is a simplified version provided for example purposes, rather than actual source code.

    <entity name="time_24_hour" type="public">
       <pattern>[01][0-9]:[0-5][0-9]</pattern>
       <pattern>2[0-3]:[0-5][0-9]</pattern>
    </entity>

    <entity name="time_all" type="public">
       <pattern>(?A:time_24_hour)</pattern>
       <entry headword="Midnight"/>
       <entry headword="midnight"/>
       <pattern>([1-9]|10|11|12) ?[ap]\.?m\.?</pattern>
    </entity>

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Named Entity Recognition 25.4

Topic Title: Simplified Grammar File Containing Patterns to Match Times of Day