Scheduling a button press in Javascript

Sometimes, if you're away, or out of touch, and you need to click a button on a web page around or after a specific time, you just have no choice but to come up with a script to do it.

This is what happened to me, when I need to click a button after a specific time, but I wasn't around to do it.

I decided to schedule a button click by writing Javascript and injecting it into the website I was using.

var myButton = temp0; var myDate = 4; var myHH = 7; var myMM = 15; // change all values here
var C=0; 
if (myButton!=null) { myButton.textContent="Post D"+myDate+" H"+myHH+" M"+myMM+" C"+C; }
var Interval1 = 
window.setInterval(function(){ // Set interval for checking
    C=C+1;
    if (myButton!=null) { myButton.textContent="Post D"+myDate+" H"+myHH+" M"+myMM+" C"+C; }
    var date = new Date(); // Create a Date object to find out what time it is
    console.log("Waiting for day " + myDate + " " + myHH+":"+myMM + " evaluating " + myButton.textContent);
    if (date.getDate() < myDate) {
      console.log("Returning..." + new Date());
      return;
    }
    console.log("Current date..." + new Date());
    if(date.getHours() >= myHH && date.getMinutes() >= myMM && myButton != null){ // Check the time
        // Do stuff
        console.log("Button clicked..." + new Date());
        myButton.click();        
        myButton = null;
        window.clearInterval(Interval1);
    } else {
      console.log("Not time yet.");
    }
}, 60000); // Repeat every 60000 milliseconds (1 minute)