Hi Divya,
1) Create a blank report
2) Create a formula in the Main Report with this code:
ctime(09,10,30)
3) Insert the report that has the from time and to time parameters as a Subreport in the Report Header
4) Right-click the Subreport > Select Change Subreport Links > Move the above formula to the panel on the right > At the bottom left-hand side where it says "Subreport Parameter field to use" choose the "To_Time" parameter.
Hope this helps.
-Abhilash