javascript subtract minutes from current time
This question already has answers here :
Check below working Demo using momentjs :
let valuestart = moment.duration("20:00", "HH:mm");
let valuestop = moment.duration("23:15", "HH:mm");
let difference = valuestop.subtract(valuestart);
console.log(difference.hours() + ":" + difference.minutes())
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.js"></script>
How do I subtract hour in javascript?, Try Like this. It returns Correct minutes: function getAct(data, s) { var startTime = data[10]; var endTime = data[11]; var s = startTime.split(':'); var e Javascript Web Development Front End Technology To subtract minutes to a JavaScript Date object, use the setMinutes() method. JavaScript date setMinutes() method sets the minutes for a specified date according to local time.
You try
function calculateTime() {
// Get values.
var valuestart = $("#starttime").val();
var valuestop = $("#endtime").val();
// Create date format.
var timeStart = new Date("01/01/2007 " + valuestart);
var timeEnd = new Date("01/01/2007 " + valuestop);
// Subtract.
var difference = timeEnd - timeStart;
var time = msToTime(difference);
console.log(time);
}
function msToTime(s) {
var ms = s % 1000;
s = (s - ms) / 1000;
var secs = s % 60;
s = (s - secs) / 60;
var mins = s % 60;
var hrs = (s - mins) / 60;
return hrs + ':' + mins + ':' + secs + '.' + ms;
}
$("#starttime, #endtime").change(calculateTime);
How can I subtract hours from a HH:MM AM time string in Javascript , Most reliable method is to convert it into a JS date object, then do you math on that the Date object accepts either year/month/day/hour/minute/second/milliseconds OR a unix-style You might try a jQuery library like DateJs. Given two dates and the task is to get the number of minutes between them using JavaScript. Approach: Initialize both Date object. Subtract older date from the new date. It will give the number of milliseconds from 1 January, 1970. Convert milliseconds to minutes .
I would suggest you to use moment.js , it will help you to save lots of time
How do I subtract minutes from a date in JavaScript?, JavaScript date setMinutes() method sets the minutes for a specified date according to local time. Example. You can try to run the following code See the Pen JavaScript - Return the number of minutes in hours and minutes-date-ex- 13 by w3resource (@w3resource) on CodePen. Improve this sample solution and post your code through Disqus. Previous: Write a JavaScript function to get the minimum date from an array of dates. Next: Write a JavaScript function to get the amount of days of a year.
How to add / subtract specific time to / from current date in JavaScript , Hi friends, Here I come again with a tip for JavaScript savvies. It's very easy to add or subtract hours and minutes from current hours and This method can also be used to set the minutes, seconds and milliseconds. Browser Support. Date .setHours ( hour, min, sec, millisec ) Parameter Values. Required. An integer representing the hour. Expected values are 0-23, but other values are allowed: -1 will result in the last hour of the previous day. 24 will result in the first hour of the
JavaScript setHours() Method, The setHours() method sets the hour of a date object. This method can also be used to set the minutes, seconds and milliseconds. Browser Support. Method. See the Pen JavaScript - Get time differences in minutes between two dates-date-ex-44 by w3resource (@w3resource) on CodePen. Improve this sample solution and post your code through Disqus. Previous: Write a JavaScript function to add specified months to a date. Next: Write a JavaScript function to get time differences in hours between two dates.
JavaScript setMinutes() Method, An integer representing the minutes. Expected values are 0-59, but other values are allowed: -1 will result in the last minute of the previous hour; 60 I am trying to do some javascript with jquery to subtract or add hours to a date. I pull the date out of my database and a specific time zone is connected with that date. So say the date is 12-25-2
Comments Please mention valuestart and valuestop in your question. Also tell the expected output format @VicJordan I had looked through the documentation for momentjs but couldn't find an obvious example of subtracting hours and minutes. Please mention valuestart and valuestop in your question. Also tell the expected output format @VicJordan I've added the expected output format under "What I need". It's not clear to me how you want me to mention valuestart and valuestop beyond each appearing in my code. Check my answer now. Updated as per the information you provided, Is there any way to pad the hours and minutes each with a leading zero when the value is less than 10? E.g. 3:15 as 03:15. E.g. 1:1 as 01:01. Is this something moment.js can format? Figured it out: (difference.hours() < 10 ? "0" : "") + difference.hours(). An answer that depends on a library not tagged or mentioned in the OP is not much better than simply saying "use library <whatever>". A non–library solution is just a few lines of code, no need for 4k lines of library. Creating Dates using non-standard strings is not a good idea, see Why does Date.parse give incorrect results? "Use library <whatever> " is not an answer, it might be a useful comment.
