how to calculate time difference in c#

Question

hi I am doing one attendance project using RFID Card. I am using c# windows application. Now I want to know how to calculate time difference between yesterday's time and today's time. I want to get yesterday's time(time) from database and get today's time from system time(currenttime). I use this coding double duration = (currenttime).Subtract(time).TotalSeconds; This coding calculate total difference in seconds with negative value... Please help... thanks in advance.....

leathu raj · Answer

THANKS FOR ALL REPLIES

Lakshmanan Sethu · Answer

Hi Refer this http://nishantwork.wordpress.com/2012/11/01/how-to-get-two-time-difference-in-minute-in-c-or-net/

Sagar Pardeshi · Answer

Use TimeSpan class and Subtract method of DateTime. DateTime t1 = Convert.ToDateTime(textBox1.Text); DateTime t2 = Convert.ToDateTime(textBox2.Text); TimeSpan ts = t1.Subtract(t2);

Nader Abbasi · Answer

Hi To get the difference time between 2 time you can use the following code: var dtYesterday = DateTime.Now; var dtNow = DateTime.Now; TimeSpan diff = dtNow - dtYesterday; And use the difference time in following format: int days = diff.Days; int hour = diff.Hours; int min = diff.Minutes; int sec = diff.Seconds; int milliSec = diff.Milliseconds;