"day dot" meaning in English

{
  "etymology_text": "Variant of year dot.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "day dot",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Australian English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "New Zealand English",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2017, “Basketball: Beware the Breakers in ANBL playoffs”, in New Zealand Herald",
          "text": "I've always said right from day dot that New Zealand and Perth are going to be the teams to beat, because they have been there and done that.",
          "type": "quotation"
        },
        {
          "ref": "2016, John Bailey, “Is art really just about bonking? MONA's David Walsh ruffles feathers (again)”, in The Sydney Morning Herald",
          "text": "From day dot, Walsh has had a master plan.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very long time ago; as far back as one can remember."
      ],
      "id": "en-day_dot-en-noun-T~X435~W",
      "raw_glosses": [
        "(slang, Ireland, Australia, New Zealand) A very long time ago; as far back as one can remember."
      ],
      "related": [
        {
          "word": "year dot"
        }
      ],
      "tags": [
        "Australia",
        "Ireland",
        "New-Zealand",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "EN-AU ck1 day dot.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/5/55/EN-AU_ck1_day_dot.ogg/EN-AU_ck1_day_dot.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/5/55/EN-AU_ck1_day_dot.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "day dot"
}

{
  "etymology_text": "Variant of year dot.",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "day dot",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "year dot"
    }
  ],
  "senses": [
    {
      "categories": [
        "Australian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "English slang",
        "English terms with audio links",
        "English terms with quotations",
        "Irish English",
        "New Zealand English"
      ],
      "examples": [
        {
          "ref": "2017, “Basketball: Beware the Breakers in ANBL playoffs”, in New Zealand Herald",
          "text": "I've always said right from day dot that New Zealand and Perth are going to be the teams to beat, because they have been there and done that.",
          "type": "quotation"
        },
        {
          "ref": "2016, John Bailey, “Is art really just about bonking? MONA's David Walsh ruffles feathers (again)”, in The Sydney Morning Herald",
          "text": "From day dot, Walsh has had a master plan.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very long time ago; as far back as one can remember."
      ],
      "raw_glosses": [
        "(slang, Ireland, Australia, New Zealand) A very long time ago; as far back as one can remember."
      ],
      "tags": [
        "Australia",
        "Ireland",
        "New-Zealand",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "EN-AU ck1 day dot.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/5/55/EN-AU_ck1_day_dot.ogg/EN-AU_ck1_day_dot.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/5/55/EN-AU_ck1_day_dot.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "day dot"
}