How to display countdown timer in Label in ASP.Net

HiAnkitPal,

In the above code the function you need to pass the startdate and the end date to show the countdown timer. The function returns string. So you need to assign the function to label like below to display.

lblTimer.Text = CalculateTimeDifference(Convert.ToDateTime("01/09/2017 2:29:12 PM"), Convert.ToDateTime("01/11/2017 2:29:12 PM"));

i want to set 15 minutes countdown time for form filling and after times passed i want to retrives on another page.

Hi AnkitPal,

Refer below links.

1. TimePicker control in ASP.Net with example
2. Run Countdown Timer for particular period for Online Test