ES DSL https://github.com/tj/es

input.go

// grab time spent
sum := Agg("duration_sum", Sum("duration"))

// grab time spent per label
labels := Agg("labels",
	Terms("issue.labels.keyword", 100),
	Aggs(sum))

// grab time spent per day, and per label
days := Agg("days",
	DateHistogram("timestamp",
		Interval("1d"),
		TimeZone()),
	Aggs(sum, labels))

// filter on a user and date range
filter := Filter(
	Term("user.login", "tj"),
	Range("now-7d", "now"))

// apply the filter
filtered := filter(Aggs(sum, labels, days))

// grab a week of data
week := Aggs(Agg("week", filtered))

// do stuff
query := Query(week)

output.json

{
  "aggs": {
    "week": {
      "aggs": {
        "days": {
          "aggs": {
            "duration_sum": {
              "sum": {
                "field": "duration"
              }
            },
            "labels": {
              "aggs": {
                "duration_sum": {
                  "sum": {
                    "field": "duration"
                  }
                }
              },
              "terms": {
                "field": "issue.labels.keyword",
                "size": 100
              }
            }
          },
          "date_histogram": {
            "field": "timestamp",
            "interval": "1d",
            "time_zone": "-07:00"
          }
        },
        "duration_sum": {
          "sum": {
            "field": "duration"
          }
        },
        "labels": {
          "aggs": {
            "duration_sum": {
              "sum": {
                "field": "duration"
              }
            }
          },
          "terms": {
            "field": "issue.labels.keyword",
            "size": 100
          }
        }
      },
      "filter": {
        "bool": {
          "filter": [
            {
              "term": {
                "user.login": "tj"
              }
            },
            {
              "range": {
                "timestamp": {
                  "gte": "now-7d",
                  "lte": "now"
                }
              }
            }
          ]
        }
      }
    }
  },
  "size": 0
}

You can use this userscript to display the tabs as something else: https://github.com/joeytwiddle/code/blob/master/other/gm_scripts/Tab_size/Tab_size.user.js

Sadly the current version does not work after navigation, it needs a reload to rerun on dynamically loaded files.

I will try to remember that ?ts=2 trick this time.