画一个横坐标是时间的图

clear;

clc;

close all;

x=0:0.1:20;

y1=sin(x);

t=0:seconds(60):minutes(length(x)-1);

figure

plot(t,y1,'DurationTickFormat','hh:mm:ss');

xticks(t(1):minutes(10):t(end));

box off