**To describe EC2 Fleet history**
The following ``describe-fleet-history`` example returns the history for the specified EC2 Fleet starting at the specified time. The output is for an EC2 Fleet with two running instances. ::
aws ec2 describe-fleet-history \
--fleet-ids fleet-12a34b55-67cd-8ef9-ba9b-9208dEXAMPLE \
--start-time 2020-09-01T00:00:00Z
Output::
{
"HistoryRecords": [
{
"EventInformation": {
"EventSubType": "submitted"
},
"EventType": "fleetRequestChange",
"Timestamp": "2020-09-01T18:26:05.000Z"
},
{
"EventInformation": {
"EventSubType": "active"
},
"EventType": "fleetRequestChange",
"Timestamp": "2020-09-01T18:26:15.000Z"
},
{
"EventInformation": {
"EventDescription": "t2.small, ami-07c8bc5c1ce9598c3, ...",
"EventSubType": "progress"
},
"EventType": "fleetRequestChange",
"Timestamp": "2020-09-01T18:26:17.000Z"
},
{
"EventInformation": {
"EventDescription": "{\"instanceType\":\"t2.small\", ...}",
"EventSubType": "launched",
"InstanceId": "i-083a1c446e66085d2"
},
"EventType": "instanceChange",
"Timestamp": "2020-09-01T18:26:17.000Z"
},
{
"EventInformation": {
"EventDescription": "{\"instanceType\":\"t2.small\", ...}",
"EventSubType": "launched",
"InstanceId": "i-090db02406cc3c2d6"
},
"EventType": "instanceChange",
"Timestamp": "2020-09-01T18:26:17.000Z"
}
],
"LastEvaluatedTime": "2020-09-01T19:10:19.000Z",
"FleetId": "fleet-12a34b55-67cd-8ef9-ba9b-9208dEXAMPLE",
"StartTime": "2020-08-31T23:53:20.000Z"
}
For more information, see `Managing an EC2 Fleet <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/manage-ec2-fleet.html>`__ in the *Amazon Elastic Compute Cloud User Guide for Linux Instances*.