How do I calculate elapsed time in milliseconds?

I want to determine the elapsed time between two events. What is the best
way to do this?

Nov 16 '05 #1

68868

JSmith,

The best way would be to get the value returned by the static Now
property on the DateTime class when the first event fires. When the second
event fires, get the time returned from the Now property again. Then, you
can take the difference between the two.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"JSmith" <nf*@nospam.com> wrote in message
news:eV**************@tk2msftngp13.phx.gbl...

I want to determine the elapsed time between two events. What is the best
way to do this?

Nov 16 '05 #2

Vladimir Scherbina

try this:
DateTime oldDate = new DateTime(2002,7,15);
DateTime newDate = DateTime.Now;
// Difference in days, hours, and minutes.
TimeSpan ts = newDate - oldDate;
// Difference in days.
int differenceInDays = ts.Milliseconds ;
Vladimir

"JSmith" <nf*@nospam.com> wrote in message news:eV**************@tk2msftngp13.phx.gbl...

I want to determine the elapsed time between two events. What is the best
way to do this?

Nov 16 '05 #3

Dilip Krishnan

Yes, this is true, but keep in mind that its not an instantanious
operation. i.e its based CPU load and the timeslice that the current
thread gets, that the Now operation is dependent on. It will probably be
off by only millis but off nevertheless.

Nicholas Paldino [.NET/C# MVP] wrote:

JSmith,

The best way would be to get the value returned by the static Now
property on the DateTime class when the first event fires. When the second
event fires, get the time returned from the Now property again. Then, you
can take the difference between the two.

Hope this helps.

--
Regards,
Dilip Krishnan
MCAD, MCSD.net
dilipdotnet at apdiya dot com

Nov 16 '05 #4

FusionGuy

Why not just use the Environment.TickCount property. Get the value when the
first and second event fires, then subtract the first value from the second.
That'll give you the difference in milliseconds.
"JSmith" <nf*@nospam.com> wrote in message
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I want to determine the elapsed time between two events. What is the best
way to do this?

Nov 16 '05 #5

ChAnG3P0INT_ChiCk

Not sure if this does what you want, but I like using unix time stamp in
general:

double my_start_time, my_end_time, my_diff;
my_start_time = (DateTime.UtcNow - new
DateTime(1970,1,1,0,0,0)).TotalSeconds;

// for loop or some events goes in here

my_end_time = (DateTime.UtcNow - new DateTime(1970,1,1,0,0,0)).TotalSeconds;

my_diff = my_end_time-my_start_time;

"JSmith" <nf*@nospam.com> wrote in message
news:eV**************@tk2msftngp13.phx.gbl...

I want to determine the elapsed time between two events. What is the best
way to do this?

Nov 16 '05 #6

by: NotGiven | last post by:

Below is a good elapsed time function I found. However, I'd like to return total seconds instead of broken down into days, hours, minutes & seconds. In other words, I want "125" instead of "2...

PHP

getting elapsed time in milliseconds

by: Thomas Baier | last post by:

Hi there, I need to know how to get the elapsed time in milliseconds. I tried time_t start,end; time(start); do_something(); time(end); double dif = difftime(end, start);