how to start time from 0s

Hi, I am creating a GUI in matlab. I have a button and the time when I press the button is recorded. I manage to do that using clock. However, is there any way the start of the time is from 0s? Thanks.

[Jan]

Please edit the question and add much more details. "Using clock" does not explain clearly, what you are doing, therefore I cannot guess what the problem is.

Answer 1

[Stephen23]

Here are two simple ways to start a timer that counts from zero:

• Use tic and toc to do the timing.
• Use now, save the start time, and subtract this from all subsequent time values.

[mira]

Hi, Can you show me how to save the start time using now? because I already use now, but seems not working. Much appreciated.Actually, I want to save the time when pressing the button.

Answer 2

[Mahdiyar]

Hi mira

you can also use command "clock" as follows:

Start_Time = clock

it gives you the accurate time as following matrix

[year month day hour minute seconds]

Regrads

[mira]

Hi Mahdiyar, I am already using the command just like you say,but the thing is how I want to save the start time. This because the first pressed button already need to save the time.so I have to minus the time of first press button with the start time. Hope you understand what I mean.

Answer 3

[mira]

thank you all.I get what I want now.