Hi Zakaria
You are getting all messages because the position of the fromTime field is at the wrong position so it is being ignored. Your time format is fine.
Normally, in XML the position does not matter as long as it belongs under the same node, but somehow this API requires it in the correct position.
If you move the fromTime field to just after dateType (so that the fields are in alphabetical order as shown in screenshot below), it should work correctly.
Rgds
Eng Swee