In reply to whwjez:
You can alter the way uvm_info macro is displaying time by adding this piece of code to your top module:
`timescale 1ps/1ps
module top
initial begin
$timeformat(-12, 5, " ps",10); //$timeformat( units_number , precision_number , suffix_string , minimum_field_width )
end
endmodule
I hope it will resolve your issue.