Graph API FindMeetingTimes Not Working for accounts with specific time zone work hours

Yeonju Park 20 Reputation points
2025-03-06T19:19:22.2333333+00:00

I am using Graph API FindMeetingTimes for my organization to getMeetingTimeSuggestions. It works for everyone in my organization except for those whose work hours are set in India Standard Time which is very strange. For accounts whose work hours are set in India, it's always returning "AttendeesUnavailable" for emptySuggestionsReason even though they have meeting slots available. It returns proper suggested times for everyone whose work hours are set in other various time zones.

Any suggestions on what to check on this?

Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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  1. Saranya Madhu-MSFT 1,895 Reputation points Microsoft External Staff
    2025-03-07T05:12:47.0166667+00:00

    Hi Yeonju Park,

    I have reproduced the issue from my end and observed discrepancies in the data not only for India Standard Time (IST) but also for other time zones such as Pacific Standard Time. It appears that the findMeetingTimes API is returning "AttendeesUnavailable"or "Unknown" for emptySuggestionsReason even when there are available meeting slots.

    Given these inconsistencies, it seems to be an issue in the API. You can submit feedback which will be monitored by Microsoft team and make the enhancements to Microsoft Graph APIs.

    Hope this helps.

    If the answer is helpful, please click Accept Answer and kindly upvote. If you have any further questions about this answer, please click Comment.

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