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Consider the following code HTML + JavaScript:
<!DOCTYPE html>
<html>
<body>
<p id="demo">Click the button to display a date after changing the hours, minutes, and seconds.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var d = new Date();
d.setHours(0,0,0,0);
document.write(d + '<br/>');
document.write('ISO Date '+ d.toISOString() + '<br/>');
//I want it to be 2013-04-17T00:00:00.000Z
}
</script>
</body>
</html>
Output:
Thu Apr 18 2013 00:00:00 GMT+0530 (India Standard Time)
ISO Date 2013-04-17T18:30:00.000Z
Could anyone help on understanding this difference in Date & Time
254
2013-18-04 00:00:00 GMT+0530
2013-17-04 18:30:00 GMT+0000
These are the two timestamps. The first one has a time zone, the second one is GMT (no time zone adjustment). If you take the second timestamp and add 05:30:00 to 18:30:00 you get midnight of the following day. That matches the first timestamp.
68
Also you can remove timezone like this:
let birthday = new Date(this.profile.birthday + ' UTC').toISOString();
var d = new Date();
d.setHours(-12, d.getTimezoneOffset(), 0, 0); //removing the timezone offset and 12 hours
console.log(d.toISOString()); //2013-04-17T00:00:00.000Z
I don't know, why would you need a ISO date a day earlier, but in case it is a typo:
var d = new Date();
d.setHours(0, -d.getTimezoneOffset(), 0, 0); //removing the timezone offset.
console.log(d.toISOString()); //2013-04-18T00:00:00.000Z
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