{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "description": "Parsing a date in utc and outputting utc.",
  "background": "white",
  "padding": 5,
  "width": 20,
  "style": "cell",
  "data": [
    {
      "name": "source_0",
      "values": [{"date": "2011-10-10"}, {"date": "2011-10-12"}]
    },
    {
      "name": "data_0",
      "source": "source_0",
      "transform": [
        {"type": "formula", "expr": "toDate(datum[\"date\"])", "as": "date"},
        {
          "field": "date",
          "type": "timeunit",
          "units": ["hours"],
          "timezone": "utc",
          "as": ["utchours_date", "utchours_date_end"]
        }
      ]
    }
  ],
  "signals": [
    {"name": "y_step", "value": 20},
    {
      "name": "height",
      "update": "bandspace(domain('y').length, 1, 0.5) * y_step"
    }
  ],
  "marks": [
    {
      "name": "marks",
      "type": "symbol",
      "style": ["point"],
      "from": {"data": "data_0"},
      "encode": {
        "update": {
          "opacity": {"value": 0.7},
          "fill": {"value": "transparent"},
          "stroke": {"value": "#4c78a8"},
          "ariaRoleDescription": {"value": "point"},
          "description": {
            "signal": "\"time: \" + (timeFormat(datum[\"utchours_date\"], timeUnitSpecifier([\"hours\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})))"
          },
          "x": {"signal": "width", "mult": 0.5},
          "y": {"scale": "y", "field": "utchours_date"}
        }
      }
    }
  ],
  "scales": [
    {
      "name": "y",
      "type": "point",
      "domain": {"data": "data_0", "field": "utchours_date", "sort": true},
      "range": {"step": {"signal": "y_step"}},
      "padding": 0.5
    }
  ],
  "axes": [
    {
      "scale": "y",
      "orient": "left",
      "grid": false,
      "title": "time",
      "format": {
        "signal": "timeUnitSpecifier([\"hours\"], {\"year-month\":\"%b %Y \",\"year-month-date\":\"%b %d, %Y \"})"
      },
      "formatType": "time",
      "labelOverlap": true,
      "zindex": 0
    }
  ]
}