Table Of Contents


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[ aws . ec2 ]



Purchases one or more Scheduled Instances with the specified schedule.

Scheduled Instances enable you to purchase Amazon EC2 compute capacity by the hour for a one-year term. Before you can purchase a Scheduled Instance, you must call describe-scheduled-instance-availability to check for available schedules and obtain a purchase token. After you purchase a Scheduled Instance, you must call run-scheduled-instances during each scheduled time period.

After you purchase a Scheduled Instance, you can't cancel, modify, or resell your purchase.

See also: AWS API Documentation


[--client-token <value>]
[--dry-run | --no-dry-run]
--purchase-requests <value>
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--client-token (string)

Unique, case-sensitive identifier that ensures the idempotency of the request. For more information, see Ensuring Idempotency .

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--purchase-requests (list)

One or more purchase requests.

Shorthand Syntax:

InstanceCount=integer,PurchaseToken=string ...

JSON Syntax:

    "InstanceCount": integer,
    "PurchaseToken": "string"

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.


To purchase a Scheduled Instance

This example purchases a Scheduled Instance.


aws ec2 purchase-scheduled-instances --purchase-requests file://purchase-request.json


        "PurchaseToken": "eyJ2IjoiMSIsInMiOjEsImMiOi...",
        "InstanceCount": 1


  "ScheduledInstanceSet": [
          "AvailabilityZone": "us-west-2b",
          "ScheduledInstanceId": "sci-1234-1234-1234-1234-123456789012",
          "HourlyPrice": "0.095",
          "CreateDate": "2016-01-25T21:43:38.612Z",
          "Recurrence": {
              "OccurrenceDaySet": [
              "Interval": 1,
              "Frequency": "Weekly",
              "OccurrenceRelativeToEnd": false,
              "OccurrenceUnit": ""
          "Platform": "Linux/UNIX",
          "TermEndDate": "2017-01-31T09:00:00Z",
          "InstanceCount": 1,
          "SlotDurationInHours": 32,
          "TermStartDate": "2016-01-31T09:00:00Z",
          "NetworkPlatform": "EC2-VPC",
          "TotalScheduledInstanceHours": 1696,
          "NextSlotStartTime": "2016-01-31T09:00:00Z",
          "InstanceType": "c4.large"


ScheduledInstanceSet -> (list)

Information about the Scheduled Instances.


Describes a Scheduled Instance.

AvailabilityZone -> (string)

The Availability Zone.

CreateDate -> (timestamp)

The date when the Scheduled Instance was purchased.

HourlyPrice -> (string)

The hourly price for a single instance.

InstanceCount -> (integer)

The number of instances.

InstanceType -> (string)

The instance type.

NetworkPlatform -> (string)

The network platform (EC2-Classic or EC2-VPC ).

NextSlotStartTime -> (timestamp)

The time for the next schedule to start.

Platform -> (string)

The platform (Linux/UNIX or Windows ).

PreviousSlotEndTime -> (timestamp)

The time that the previous schedule ended or will end.

Recurrence -> (structure)

The schedule recurrence.

Frequency -> (string)

The frequency (Daily , Weekly , or Monthly ).

Interval -> (integer)

The interval quantity. The interval unit depends on the value of frequency . For example, every 2 weeks or every 2 months.

OccurrenceDaySet -> (list)

The days. For a monthly schedule, this is one or more days of the month (1-31). For a weekly schedule, this is one or more days of the week (1-7, where 1 is Sunday).


OccurrenceRelativeToEnd -> (boolean)

Indicates whether the occurrence is relative to the end of the specified week or month.

OccurrenceUnit -> (string)

The unit for occurrenceDaySet (DayOfWeek or DayOfMonth ).

ScheduledInstanceId -> (string)

The Scheduled Instance ID.

SlotDurationInHours -> (integer)

The number of hours in the schedule.

TermEndDate -> (timestamp)

The end date for the Scheduled Instance.

TermStartDate -> (timestamp)

The start date for the Scheduled Instance.

TotalScheduledInstanceHours -> (integer)

The total number of hours for a single instance for the entire term.