"de bonne heure" meaning in French

{
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        "2": "di buon'ora"
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      "expansion": "Italian di buon'ora",
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  "etymology_text": "Compare Italian di buon'ora.",
  "head_templates": [
    {
      "args": {
        "1": "de bonne heure"
      },
      "expansion": "de bonne heure",
      "name": "fr-adv"
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  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
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          "_dis": "100 0",
          "kind": "other",
          "name": "French entries with incorrect language header",
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      "examples": [
        {
          "english": "For a long time I used to go to bed early. Sometimes, when I had put out my candle, my eyes would close so quickly that I had not even time to say \"I'm going to sleep.\"",
          "ref": "1913, Marcel Proust, Du côté de chez Swann [Swann's Way] (À la recherche du temps perdu):",
          "text": "Longtemps, je me suis couché de bonne heure. Parfois, à peine ma bougie éteinte, mes yeux se fermaient si vite que je n’avais pas le temps de me dire : « Je m’endors. »",
          "type": "quote"
        }
      ],
      "glosses": [
        "in advance; ahead of time"
      ],
      "id": "en-de_bonne_heure-fr-adv-Xf11t8-1",
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        [
          "advance",
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          "ahead",
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          "time",
          "time"
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      ],
      "synonyms": [
        {
          "word": "tôt"
        }
      ]
    },
    {
      "glosses": [
        "early in the morning"
      ],
      "id": "en-de_bonne_heure-fr-adv-WnvLd1EK",
      "links": [
        [
          "early",
          "early"
        ],
        [
          "morning",
          "morning"
        ]
      ],
      "synonyms": [
        {
          "word": "de bon matin"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/də bɔn œʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-WikiLucas00-de bonne heure.wav",
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  "word": "de bonne heure"
}

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        "2": "di buon'ora"
      },
      "expansion": "Italian di buon'ora",
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  ],
  "etymology_text": "Compare Italian di buon'ora.",
  "head_templates": [
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      "args": {
        "1": "de bonne heure"
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      "expansion": "de bonne heure",
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  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "French terms with quotations"
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      "examples": [
        {
          "english": "For a long time I used to go to bed early. Sometimes, when I had put out my candle, my eyes would close so quickly that I had not even time to say \"I'm going to sleep.\"",
          "ref": "1913, Marcel Proust, Du côté de chez Swann [Swann's Way] (À la recherche du temps perdu):",
          "text": "Longtemps, je me suis couché de bonne heure. Parfois, à peine ma bougie éteinte, mes yeux se fermaient si vite que je n’avais pas le temps de me dire : « Je m’endors. »",
          "type": "quote"
        }
      ],
      "glosses": [
        "in advance; ahead of time"
      ],
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        [
          "advance",
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        [
          "ahead",
          "ahead"
        ],
        [
          "time",
          "time"
        ]
      ],
      "synonyms": [
        {
          "word": "tôt"
        }
      ]
    },
    {
      "glosses": [
        "early in the morning"
      ],
      "links": [
        [
          "early",
          "early"
        ],
        [
          "morning",
          "morning"
        ]
      ],
      "synonyms": [
        {
          "word": "de bon matin"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/də bɔn œʁ/"
    },
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  "word": "de bonne heure"
}