Zoho CRM Custom Function to Create an Event

Hello,

I'm trying to create an event via a simple custom function, but I'm not having a lot of success. Here is my code:

crmEventFMAP = Map();

crmEventFMAP.put("Subject","test");

crmEventFMAP.put("Description","test");

crmEventFMAP.put("Start DateTime","2018-03-28 08:00:00");

crmEventFMAP.put("End DateTime","2018-03-28 09:00:00");

//eventinfo = {E}

res = zoho.crm.create("Events",crmEventFMAP);

Unfortunately, the event is not being created when I run the script. What am I missing??

Thanks!