define the following windows api call in a module - no other code is needed
then refer to it as you require
eg
startquerytime = my_gettickcount
I think offhand the tickcount is in milliseconds, but you can keep calling this with eg an array of long, and display the differences in timing as you need.
Code:
Declare Function my_GetTickCount Lib "Kernel32" Alias "GetTickCount" () As Long
VBA also has a Timer function, which returns a single equal to the number of seconds elapsed since midnight and rounded to the nearest millisecond. Search "Timer" in VBA help for info, examples.