How to calculate the hours between two times with jquery?
24,884
Solution 1
Easy way is if you get a negative value, add 24 hours to it and you should have your result.
var hours = parseInt($(".Time2").val().split(':')[0], 10) - parseInt($(".Time1").val().split(':')[0], 10);
// if negative result, add 24 hours
if(hours < 0) hours = 24 + hours;
Demo: http://jsfiddle.net/44NCk/1/
Getting the minutes as a decimal involves a bit more as you can see in thsi fiddle: http://jsfiddle.net/44NCk/2/
function calculate() {
var time1 = $(".Time1").val().split(':'), time2 = $(".Time2").val().split(':');
var hours1 = parseInt(time1[0], 10),
hours2 = parseInt(time2[0], 10),
mins1 = parseInt(time1[1], 10),
mins2 = parseInt(time2[1], 10);
var hours = hours2 - hours1, mins = 0;
// get hours
if(hours < 0) hours = 24 + hours;
// get minutes
if(mins2 >= mins1) {
mins = mins2 - mins1;
}
else {
mins = (mins2 + 60) - mins1;
hours--;
}
// convert to fraction of 60
mins = mins / 60;
hours += mins;
hours = hours.toFixed(2);
$(".Hours").val(hours);
}
Solution 2
function timeobject(t){
a = t.replace('AM','').replace('PM','').split(':');
h = parseInt(a[0]);
m = parseInt(a[1]);
ampm = (t.indexOf('AM') !== -1 ) ? 'AM' : 'PM';
return {hour:h,minute:m,ampm:ampm};
}
function timediff(s,e){
s = timeobject(s);
e = timeobject(e);
e.hour = (e.ampm === 'PM' && s.ampm !== 'PM' && e.hour < 12) ? e.hour + 12 : e.hour;
hourDiff = Math.abs(e.hour-s.hour);
minuteDiff = e.minute - s.minute;
if(minuteDiff < 0){
minuteDiff = Math.abs(60 + minuteDiff);
hourDiff = hourDiff - 1;
}
return hourDiff+':'+ Math.abs(minuteDiff);
}
difference = timediff('09:10 AM','12:25 PM'); // output 3:15
difference = timediff('09:05AM','10:20PM'); // output 13:15
Solution 3
$(function () {
function calculate() {
var time1 = $(".Time1").val().split(':'), time2 = $(".Time2").val().split(':');
var hours1 = parseInt(time1[0], 10),
hours2 = parseInt(time2[0], 10),
mins1 = parseInt(time1[1], 10),
mins2 = parseInt(time2[1], 10),
seconds1 = parseInt(time1[2], 10),
seconds2 = parseInt(time2[2], 10);
var hours = hours2 - hours1, mins = 0, seconds = 0;
if(hours < 0) hours = 24 + hours;
if(mins2 >= mins1) {
mins = mins2 - mins1;
}
else {
mins = (mins2 + 60) - mins1;
hours--;
}
if (seconds2 >= seconds1) {
seconds = seconds2 - seconds1;
}
else {
seconds = (seconds2 + 60) - seconds1;
mins--;
}
seconds = seconds/60;
mins += seconds;
mins = mins / 60; // take percentage in 60
hours += mins;
//hours = hours.toFixed(4);
$(".Hours").val(hours);
}
$(".Time1,.Time2").change(calculate);
calculate();
});
Solution 4
Here is an HTML Code
<input type="text" name="start_time" id="start_time" value="12:00">
<input type="text" name="end_time" id="end_time" value="10:00">
<input type="text" name="time_duration" id="time_duration">
Here is javascript code
function timeCalculating()
{
var time1 = $("#start_time").val();
var time2 = $("#end_time").val();
var time1 = time1.split(':');
var time2 = time2.split(':');
var hours1 = parseInt(time1[0], 10),
hours2 = parseInt(time2[0], 10),
mins1 = parseInt(time1[1], 10),
mins2 = parseInt(time2[1], 10);
var hours = hours2 - hours1, mins = 0;
if(hours < 0) hours = 24 + hours;
if(mins2 >= mins1) {
mins = mins2 - mins1;
}
else {
mins = (mins2 + 60) - mins1;
hours--;
}
if(mins < 9)
{
mins = '0'+mins;
}
if(hours < 9)
{
hours = '0'+hours;
}
$("#time_duration").val(hours+':'+mins);
}
Author by
DreamTeK
Updated on July 09, 2022Comments
-
DreamTeK almost 2 years
I am trying to calculate the hours between two times.
Below is where I am currently but this code fails in two ways.
1). I need
.Hours
to output time in decimal.(e.g one and half hours should output 1.5 and 15mins should be 0.25).
2). Calculation currently does not treat values for time as
time
.(e.g 23:00 to 2:00 should equal
3
and NOT-21
as currently).
HTML
<input class="Time1" value="10:00" /> <input class="Time2" value="12:00" /> <input class="Hours" value="0" />
JQUERY
$(function () { function calculate() { var hours = parseInt($(".Time2").val().split(':')[0], 10) - parseInt($(".Time1").val().split(':')[0], 10); $(".Hours").val(hours); } $(".Time1,.Time2").change(calculate); calculate(); });