{
  "id": 114520,
  "title": "Daylight saving...?",
  "url": "/competitions/ashrae-energy-prediction/discussion/114520",
  "author_name": "",
  "post_date": "2019-10-27T00:47:56.607285400Z",
  "votes": 2,
  "comment_count": 8,
  "views": 0,
  "content": "<p>If US, then maybe there is 1 hour shift</p>",
  "messages": [
    {
      "id": "659030",
      "postDate": "10/27/2019 00:47:56",
      "content": "<p>If US, then maybe there is 1 hour shift</p>",
      "rawMarkdown": "If US, then maybe there is 1 hour shift",
      "votes": null
    },
    {
      "id": "659442",
      "postDate": "10/27/2019 17:07:27",
      "content": "<p>Check out this post to understand how daylight saving works. \nIn the U.S., clocks change at 2:00 a.m. local time. In spring, clocks spring forward from 1:59 a.m. to 3:00 a.m.; in fall, clocks fall back from 1:59 a.m. to 1:00 a.m.\n<a href=\"http://www.webexhibits.org/daylightsaving/b.html\">http://www.webexhibits.org/daylightsaving/b.html</a></p>",
      "rawMarkdown": "Check out this post to understand how daylight saving works. \nIn the U.S., clocks change at 2:00 a.m. local time. In spring, clocks spring forward from 1:59 a.m. to 3:00 a.m.; in fall, clocks fall back from 1:59 a.m. to 1:00 a.m.\nhttp://www.webexhibits.org/daylightsaving/b.html",
      "votes": null
    },
    {
      "id": "659587",
      "postDate": "10/28/2019 00:20:24",
      "content": "<p>But how do you know which building located in USA?</p>",
      "rawMarkdown": "But how do you know which building located in USA?",
      "votes": null
    },
    {
      "id": "659663",
      "postDate": "10/28/2019 03:32:25",
      "content": "<p><a href=\"/klloke\">@klloke</a> We can use temperature unit of Celsius vs Fahrenheit to validate this theory.</p>",
      "rawMarkdown": "klloke We can use temperature unit of Celsius vs Fahrenheit to validate this theory.",
      "votes": null
    },
    {
      "id": "660065",
      "postDate": "10/28/2019 16:07:13",
      "content": "<p>My impression it that we're dealing with data from the US, Canada, and UK mainly. AFAIK they all use daylight savings, but the UK switches at a different calendar date.</p>\n\n<p>Daylight saving time 2019 in United Kingdom began at 1:00 a.m. on\nSunday, March 31\nand ended at 2:00 a.m. on\nSunday, October 27\nAll times are in United Kingdom Time.</p>\n\n<p>Daylight saving time 2019 in United States began at 2:00 a.m. on\nSunday, March 10\nand ends at 2:00 a.m. on\nSunday, November 3\nAll times are in Eastern Time.</p>",
      "rawMarkdown": "My impression it that we're dealing with data from the US, Canada, and UK mainly. AFAIK they all use daylight savings, but the UK switches at a different calendar date.\n\nDaylight saving time 2019 in United Kingdom began at 1:00 a.m. on\nSunday, March 31\nand ended at 2:00 a.m. on\nSunday, October 27\nAll times are in United Kingdom Time.\n\n\nDaylight saving time 2019 in United States began at 2:00 a.m. on\nSunday, March 10\nand ends at 2:00 a.m. on\nSunday, November 3\nAll times are in Eastern Time.",
      "votes": null
    },
    {
      "id": "660390",
      "postDate": "10/29/2019 04:10:45",
      "content": "<p><a href=\"/sdoria\">@sdoria</a> I'd appreciate your feedback. I found site 0 is ucf: <a href=\"https://www.kaggle.com/c/ashrae-energy-prediction/discussion/114762#latest-660382\">https://www.kaggle.com/c/ashrae-energy-prediction/discussion/114762#latest-660382</a></p>",
      "rawMarkdown": "sdoria I'd appreciate your feedback. I found site 0 is ucf: https://www.kaggle.com/c/ashrae-energy-prediction/discussion/114762#latest-660382",
      "votes": null
    },
    {
      "id": "674410",
      "postDate": "11/16/2019 13:07:54",
      "content": "<p>Coming back to the subject, now that we have more information as regards the sites:\n<a href=\"https://www.kaggle.com/c/ashrae-energy-prediction/discussion/115698#latest-674237\">Sites, buildings identified by internet search</a></p>\n\n<p>In Canada and the USA, the dates of DST were:\n2016: 13 March- 6 November\n2017: 12 March - 5 November\n2018: 11 March- 4 November</p>\n\n<p>In the UK and Ireland:\n2016: 27 March - 30 October\n2017: 26 March- 29 October\n2018: 25 March-28 October</p>\n\n<p>Most tree-based models should capture the impact of DST for April-October through the combination of site_id and month. This leaves us with a large part of March and a few days in November in Canada/US &amp; a few days in March and October for UK/Ireland that may need to be flagged.</p>",
      "rawMarkdown": "Coming back to the subject, now that we have more information as regards the sites:\n[Sites, buildings identified by internet search](https://www.kaggle.com/c/ashrae-energy-prediction/discussion/115698#latest-674237)\n\nIn Canada and the USA, the dates of DST were:\n2016: 13 March- 6 November\n2017: 12 March - 5 November\n2018: 11 March- 4 November\n\nIn the UK and Ireland:\n2016: 27 March - 30 October\n2017: 26 March- 29 October\n2018: 25 March-28 October\n\nMost tree-based models should capture the impact of DST for April-October through the combination of site_id and month. This leaves us with a large part of March and a few days in November in Canada/US &amp; a few days in March and October for UK/Ireland that may need to be flagged.",
      "votes": null
    },
    {
      "id": "674447",
      "postDate": "11/16/2019 14:23:16",
      "content": "<p>Canada does apply DST</p>",
      "rawMarkdown": "Canada does apply DST",
      "votes": null
    },
    {
      "id": "674487",
      "postDate": "11/16/2019 15:03:25",
      "content": "<p>Thanks for this, I read it wrong in the website I consulted. Canada has the same DST dates as the US. (edited original comment)</p>",
      "rawMarkdown": "Thanks for this, I read it wrong in the website I consulted. Canada has the same DST dates as the US. (edited original comment)",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 659442,
      "author_name": "agilesifaka",
      "author_url": "",
      "post_date": "10/27/2019 17:07:27",
      "content": "<p>Check out this post to understand how daylight saving works. \nIn the U.S., clocks change at 2:00 a.m. local time. In spring, clocks spring forward from 1:59 a.m. to 3:00 a.m.; in fall, clocks fall back from 1:59 a.m. to 1:00 a.m.\n<a href=\"http://www.webexhibits.org/daylightsaving/b.html\">http://www.webexhibits.org/daylightsaving/b.html</a></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 659587,
      "author_name": "klloke",
      "author_url": "",
      "post_date": "10/28/2019 00:20:24",
      "content": "<p>But how do you know which building located in USA?</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 659663,
      "author_name": "dlkaggle2019",
      "author_url": "",
      "post_date": "10/28/2019 03:32:25",
      "content": "<p><a href=\"/klloke\">@klloke</a> We can use temperature unit of Celsius vs Fahrenheit to validate this theory.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 660065,
      "author_name": "sdoria",
      "author_url": "",
      "post_date": "10/28/2019 16:07:13",
      "content": "<p>My impression it that we're dealing with data from the US, Canada, and UK mainly. AFAIK they all use daylight savings, but the UK switches at a different calendar date.</p>\n\n<p>Daylight saving time 2019 in United Kingdom began at 1:00 a.m. on\nSunday, March 31\nand ended at 2:00 a.m. on\nSunday, October 27\nAll times are in United Kingdom Time.</p>\n\n<p>Daylight saving time 2019 in United States began at 2:00 a.m. on\nSunday, March 10\nand ends at 2:00 a.m. on\nSunday, November 3\nAll times are in Eastern Time.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 660390,
      "author_name": "dlkaggle2019",
      "author_url": "",
      "post_date": "10/29/2019 04:10:45",
      "content": "<p><a href=\"/sdoria\">@sdoria</a> I'd appreciate your feedback. I found site 0 is ucf: <a href=\"https://www.kaggle.com/c/ashrae-energy-prediction/discussion/114762#latest-660382\">https://www.kaggle.com/c/ashrae-energy-prediction/discussion/114762#latest-660382</a></p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 674410,
      "author_name": "panosc",
      "author_url": "",
      "post_date": "11/16/2019 13:07:54",
      "content": "<p>Coming back to the subject, now that we have more information as regards the sites:\n<a href=\"https://www.kaggle.com/c/ashrae-energy-prediction/discussion/115698#latest-674237\">Sites, buildings identified by internet search</a></p>\n\n<p>In Canada and the USA, the dates of DST were:\n2016: 13 March- 6 November\n2017: 12 March - 5 November\n2018: 11 March- 4 November</p>\n\n<p>In the UK and Ireland:\n2016: 27 March - 30 October\n2017: 26 March- 29 October\n2018: 25 March-28 October</p>\n\n<p>Most tree-based models should capture the impact of DST for April-October through the combination of site_id and month. This leaves us with a large part of March and a few days in November in Canada/US &amp; a few days in March and October for UK/Ireland that may need to be flagged.</p>",
      "votes": null,
      "replies": [
        {
          "id": 674447,
          "author_name": "sdoria",
          "author_url": "",
          "post_date": "11/16/2019 14:23:16",
          "content": "<p>Canada does apply DST</p>",
          "votes": null,
          "replies": []
        },
        {
          "id": 674487,
          "author_name": "panosc",
          "author_url": "",
          "post_date": "11/16/2019 15:03:25",
          "content": "<p>Thanks for this, I read it wrong in the website I consulted. Canada has the same DST dates as the US. (edited original comment)</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "659030": "If US, then maybe there is 1 hour shift",
    "659442": "Check out this post to understand how daylight saving works. \nIn the U.S., clocks change at 2:00 a.m. local time. In spring, clocks spring forward from 1:59 a.m. to 3:00 a.m.; in fall, clocks fall back from 1:59 a.m. to 1:00 a.m.\nhttp://www.webexhibits.org/daylightsaving/b.html",
    "659587": "But how do you know which building located in USA?",
    "659663": "klloke We can use temperature unit of Celsius vs Fahrenheit to validate this theory.",
    "660065": "My impression it that we're dealing with data from the US, Canada, and UK mainly. AFAIK they all use daylight savings, but the UK switches at a different calendar date.\n\nDaylight saving time 2019 in United Kingdom began at 1:00 a.m. on\nSunday, March 31\nand ended at 2:00 a.m. on\nSunday, October 27\nAll times are in United Kingdom Time.\n\n\nDaylight saving time 2019 in United States began at 2:00 a.m. on\nSunday, March 10\nand ends at 2:00 a.m. on\nSunday, November 3\nAll times are in Eastern Time.",
    "660390": "sdoria I'd appreciate your feedback. I found site 0 is ucf: https://www.kaggle.com/c/ashrae-energy-prediction/discussion/114762#latest-660382",
    "674410": "Coming back to the subject, now that we have more information as regards the sites:\n[Sites, buildings identified by internet search](https://www.kaggle.com/c/ashrae-energy-prediction/discussion/115698#latest-674237)\n\nIn Canada and the USA, the dates of DST were:\n2016: 13 March- 6 November\n2017: 12 March - 5 November\n2018: 11 March- 4 November\n\nIn the UK and Ireland:\n2016: 27 March - 30 October\n2017: 26 March- 29 October\n2018: 25 March-28 October\n\nMost tree-based models should capture the impact of DST for April-October through the combination of site_id and month. This leaves us with a large part of March and a few days in November in Canada/US &amp; a few days in March and October for UK/Ireland that may need to be flagged.",
    "674447": "Canada does apply DST",
    "674487": "Thanks for this, I read it wrong in the website I consulted. Canada has the same DST dates as the US. (edited original comment)"
  },
  "source": "meta"
}