Thanks a lot Magnus - your suggestions were helpful. Basically, I didn&#39;t have uuidgen on my machine and that caused the same ID to be generated for all timestamps. I&#39;m not sure if that&#39;s a bug because even though I&#39;m on Windows, when I evaluate (current-time)  it gives me the time up to milliseconds - something like (19038 42793 57000)<br>


<br>Nick, thanks to you too for pointing out that I need to set org-icalendar-store-UID. That&#39;s exactly what I need to ensure I don&#39;t upload the same event twice.<br><br clear="all">thanks,<br>--<br>ajd.