How to display the request sent time and the response received time in Fiddler?
Your simplest approach would be to right-click the Web Sessions list's column headers and choose Customize Columns...
from the menu.
From the Collection
dropdown, choose the Session Timers
option and then select the timer of interest in the Timer Name
dropdown.
For Fiddler 4.6.2, Right Click on any of the Column Headers on the Sessions pane.
Customize Columns > Collection > SessionTimers > ClientBeginRequest and ClientDoneRequest
It appears like this.
If you just need to profile a single request, you can view the Statistics
tab on the right, when clicking on a request in the requests pane like this.
If you need to profile multiple requests, select multiple requests from the left capture pane and you'll see the aggregate performance under statistics
tab.