Hi Ed,
Thanks for your response.. I can't see the Z at the end of the datetime, I had already specified GMT UK time zone in the create event step. The complete output in beneath, this is however the start and end times
"start": "2022-07-11T00:00:00.0000000",
"end": "2022-07-15T00:00:00.0000000",
"startWithTimeZone": "2022-07-11T00:00:00+01:00",
"endWithTimeZone": "2022-07-15T00:00:00+01:00",
{
"subject": "Joe Bloggs ",
"start": "2022-07-11T00:00:00.0000000",
"end": "2022-07-15T00:00:00.0000000",
"startWithTimeZone": "2022-07-11T00:00:00+01:00",
"endWithTimeZone": "2022-07-15T00:00:00+01:00",
"body": "",
"isHtml": true,
"responseType": "organizer",
"responseTime": "0001-01-01T00:00:00+00:00",
"id": "AAMkAGEyNDJmNTE5LTFkNTktNDRiNy05NWUxLTM4ZTk4MTRlNDI3MQBGAAAAAAB4p62NEtL7TYhMsV3AzrguBwCiYXYsOS6pv8y2T9nnzAADy9M34AACiYXYs2ghOS6pv8y2T9nnzAADy9w2vAAA=",
"createdDateTime": "2022-07-08T13:00:18.4823786+00:00",
"lastModifiedDateTime": "2022-07-08T13:00:18.5136234+00:00",
"organizer": "joe.bloggs@random.com",
"timeZone": "GMT Standard Time",
"seriesMasterId": null,
"iCalUId": "040000008200E00074C5B7101A82E00800000000DEB7A2ACCA92D801000000000000000010000000CF4652DDB79FE2479E4E6B3F86F33067",
"categories": [],
"webLink": "https://outlook.office365.com/owa/?itemid=AAMkAGEyNDJmNTE5LTFkNTktNDRiNy05NWUxLTM4ZTk4MTRlNDI3MQBGAAAAAAB4p62NEtL7TYhMsV3AzrguBwCiYXYs2ghOS6pv8y2T9nnzAADy9M34AACiYXYsOS6pv8y2T9nnzAADy9w2vAAA%3D&exvsurl=1&path=/calendar/item",
"requiredAttendees": "",
"optionalAttendees": "",
"resourceAttendees": "",
"location": "",
"importance": "low",
"isAllDay": true,
"recurrence": "none",
"recurrenceEnd": null,
"numberOfOccurences": null,
"reminderMinutesBeforeStart": 15,
"isReminderOn": true,
"showAs": "free",
"responseRequested": true,
"sensitivity": "normal"
}