Can i get the remaining time from the start of a timer?

Hi everyone, I was wondering if it was possible to get the amount of time that remains before a timer executes its TimerFcn? I have a very simple timer such as:

t = timer;
t.StartDelay = 300;
t.TimerFcn = @(myTimerObj, thisEvent)disp('300 seconds have elapsed');
start(t)

How can I know how many more seconds I have before the text appears? Thank you in advance

[Adam Danz]

You can approximate time remaining by using tic/toc.

t = timer;
t.StartDelay = 300;
t.TimerFcn = @(myTimerObj, thisEvent)disp('300 seconds have elapsed');
t0 = tic(); 
start(t)

% to check time remaining
remainingTime = t.StartDelay-toc(t0); 

Answer 1

[Swaraj]

You can use tic, toc and a while loop for this.

t = timer;
t.StartDelay = 20;
t.TimerFcn = @(myTimerObj, thisEvent)disp('20 seconds have elapsed');
sTime = tic;
start(t)
while (toc(sTime) < t.StartDelay)
    fprintf('%.0f seconds remaining\n', t.StartDelay - toc(sTime));
    pause(1);
end