# Series Query: Period End Time

# Description

By default, period start time is based on calendar.

For a 1-minute period, each period starts at 0 seconds of each minute. For a 1-hour period, the period starts at 0 minute and 0 seconds of each hour, etc.

This is called the CALENDAR alignment.

For example, the default alignment can be changed to ensure that the period start or end time is aligned with boundaries of the requested time range.

# Request

# URI

POST /api/v1/series/query

# Payload

[
  {
    "startDate": "2016-06-27T14:12:33.111Z",
    "endDate":   "2016-06-27T14:22:33.111Z",
    "entity": "nurswgvml007",
    "metric": "cpu_busy",
    "aggregate": {"period": {"count": 5, "unit": "MINUTE", "align": "END_TIME"},
                  "type": "COUNT"}
  }
]

# Response

# Payload

[
  {
    "entity": "nurswgvml007",
    "metric": "cpu_busy",
    "tags": {},
    "type": "HISTORY",
    "aggregate": {
      "type": "COUNT",
      "period": {
        "count": 5,
        "unit": "MINUTE",
        "align": "END_TIME"
      }
    },
    "data": [
      {
        "d": "2016-06-27T14:12:33.111Z",
        "v": 19
      },
      {
        "d": "2016-06-27T14:17:33.111Z",
        "v": 19
      }
    ]
  }
]