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Frequent Visitor

Delay Until not Delaying

I have created a flow, that triggers from Microsoft Bookings when a booking is created.

The flow is supposed to take the time of the booking and delay until that time, then send an email to the person who booked the appointment.

The problem I'm running into, is the flow is running and completing without errors, but does not delay. It sends the email immediately.

I've looked at the raw input into the delay until command, and it is correct, so why does it not wait until the time specified before continuing? 

Resolver II
Resolver II

Hi @cmckay 


There are a few things you can check to troubleshoot why the Delay Until action is not working as expected:

  1. Verify that the input to the Delay Until action is in the correct format. The input should be in the format of "yyyy-MM-ddTHH:mm:ssZ" or "yyyy-MM-ddTHH:mm:ss.sssZ" and should match the format of the date and time of the booking. Make sure that the time format is correct, it should be in 24h format.

  2. Verify that the date and time input to the Delay Until action is in the future. If the date and time input is in the past, the flow will not delay.

  3. Check if the timezone of the flow is correctly set to the timezone that you are using for the booking.

  4. Double-check if the flow is not running on a recurrence, you can use the "Initialize variable" action to set a variable with the current datetime and check if it is equal to the datetime you want to compare with.

  5. Verify that the delay action is the next step after the "when a booking is created" trigger, if there is any other action before the delay action, the delay action may not work as expected.

  6. If the above steps don't work, you can try using the "Wait" action instead of the "Delay Until" action. The "Wait" action allows you to specify the duration to wait before continuing with the next step of the flow.

Frequent Visitor

Hello nitishsh91,


Thank you for your response. 


The Delay Until appears to believe it has run correctly, so I think the format is correct.  The date and time are definitely in the future, the timezone is converted to UTC to ensure it works, I don't have it running on a recurrence, the only thing occurring is this process is supposed to send an email at the time of the meeting.

The only other action before the delay action is the conversion of the date format.

Can the Wait action be specified to wait until the time of the booking?

I have included a screen shot of the Power Automate and if you look at the top of the page, you can see it ran at  11:03:40AM (My timezone is Arizona, so this is UTC -7)

The Delay until was for 6:30 UTC (Should be 11:30AM Arizona time) but it ran immediately, and reported that it successfully ran.




Am I doing something wrong here to cause it to run immediately?


You can try to use the "Wait" action instead of the "Delay until", the "Wait" action can be specified to wait for a specified amount of time in seconds. You can calculate the amount of seconds until the time of the booking and use it as input for the "Wait" action, this should delay the flow until the time of the booking.

Also you can try to use the "Delay" action instead of the "Delay until" action, this action will delay the flow for a fixed amount of time that you specify in seconds.


Frequent Visitor

After a ticket to Microsoft, I was able to get this working.

The solution they offered, which worked, was to remove the formatting specified in the convert time (yyyy-MM-ddTHH:mm:ssZ), and instead use the drop down menu in the format option and select "Universal sortable date/time pattern - 2009-06-15 13:45:30Z [u]". Once I did this, the delay until started working.

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