"bottom of the hour" meaning in English

{
  "antonyms": [
    {
      "word": "top of the hour"
    }
  ],
  "etymology_text": "Refers to the time when the position of the long hand is pointing toward the number 6, or exactly halfway between the preceding hour and the upcoming one.",
  "forms": [
    {
      "form": "bottoms of the hour",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "bottoms of the hours",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "bottoms of the hour",
        "2": "bottoms of the hours"
      },
      "expansion": "bottom of the hour (plural bottoms of the hour or bottoms of the hours)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Time",
          "orig": "en:Time",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "At seven o'clock, he said to get in touch with him again at the bottom of the hour, so I called him back at seven thirty.",
          "type": "example"
        }
      ],
      "glosses": [
        "The time at (or very close to) half the next hour of time."
      ],
      "id": "en-bottom_of_the_hour-en-noun-8QbsmpTs",
      "links": [
        [
          "time",
          "time"
        ],
        [
          "half",
          "half"
        ]
      ]
    }
  ],
  "word": "bottom of the hour"
}

{
  "antonyms": [
    {
      "word": "top of the hour"
    }
  ],
  "etymology_text": "Refers to the time when the position of the long hand is pointing toward the number 6, or exactly halfway between the preceding hour and the upcoming one.",
  "forms": [
    {
      "form": "bottoms of the hour",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "bottoms of the hours",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "bottoms of the hour",
        "2": "bottoms of the hours"
      },
      "expansion": "bottom of the hour (plural bottoms of the hour or bottoms of the hours)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with usage examples",
        "en:Time"
      ],
      "examples": [
        {
          "text": "At seven o'clock, he said to get in touch with him again at the bottom of the hour, so I called him back at seven thirty.",
          "type": "example"
        }
      ],
      "glosses": [
        "The time at (or very close to) half the next hour of time."
      ],
      "links": [
        [
          "time",
          "time"
        ],
        [
          "half",
          "half"
        ]
      ]
    }
  ],
  "word": "bottom of the hour"
}