# Calculate The Number Of Days Between Two Dates?

Sep 28, 2010

I want to calculate the number of days between two dates.

Date is in the below format:
First Date : 2010-09-27 05:00:00
Second Date : 2010-10-1 08:00:00

## JQuery :: DatePicker - Determine Number Of Days Between Two Dates

May 12, 2011

I have searched Datepicker, the forums and the internet in general to find the way to determine the number of days between two dates using Datepicker. My inputs are named: Starts, Ends, Days. I found the code below, but cannot get it to work.

// calculates reservation duration
function resDuration(#Starts, #Ends) {
var date1 = new Date(#Starts.value);
var date2 = new Date(#Ends.value);
var minutes = 1000*60;
var hours = minutes*60;
var days = hours*24;
var diff = Math.abs(date2.getTime() - date1.getTime());
return round(diff / days);
}
/* put that value in elapsed days field */
\$('#Days').val(diff);
I will then do validation on the result - input field "Days".

## Number Of Days By Month Report Based On Start And End Dates

Oct 1, 2010

I have a requirement to generate a report (tabular view) which displays number of days by Month from Start Date to End Date. Also, total number of days that fall in the range in the corresponding year.

I am looking for a Javascript function as a solution to the above requirement but could not find one.

For example,
Start Date: 02/15/2007
End Date: 08/22/2010

Report should be as displayed in the attached text file.

## Calculate Number Of Weeks Between Two Selected Dates

Oct 25, 2010

I am new to Java scripts. But at my job, my boss asks me to come up with a calculator that calculates the number of weeks on our website. But I want two calenders where in the first one the user will select the start date and in the second one, the user will select the end date. And There will be one last button that says"calculate" and a text box to display the number of weeks.

## Code For Window.confirm() Function - Find The Number Of Days - Calculate And Display The Total Cost?

Dec 6, 2010

I am having some difficulty in constructing a window.confirm() function that works with my code.So if the form data is valid, I need to use a window.confirm() dialog box to show the user's total cost based on the rental rate of equipment chosen and the reservation period. The user must accept the cost by pressing the confirm button, and if user cancels do not submit data.I have written this code but cannot figure out how to find the number of days from the 2 date fields and use that to calculate and display the total cost.

//confirm submit and display rental cost
var equip = document.forms.equipment.value
var pDate = document.forms.pickupDate.value[code].....

## Display Days , Dates And Times For Two Countries On One Page?

Apr 25, 2009

Is it possible to do the above, and to have the time updating on the page as you look at it ?

## Countdown Timer (days - Hours - Minutes - Seconds) Between Dates

May 8, 2010

I have developed a application in jsp. I need to achieve a count down timer(days,hours,minutes,seconds) between from date to todate, considering below cases. All below are assumed

(1) I have 4 product, for each product i have different end date stored in mysql in DB.

(2) I need to calculate time time remaining for the end date for each product, for eg;

Product 1 end date : 10/05/2010 (i need to show the time remaining for the end of 10/05/2010 from current time and date). Like wise i need to show for different products.

## Calculate Difference In Dates

Jul 23, 2005

For my website i would like to display the age of my son in years,
months, days and hours.

For now i manage to get a result for totals. Like the total number of
days.

This is the beginning:

starttime = Date.parse("Aug 10,2003, 07:07")
sdt = new Date(starttime)
starttime= Math.ceil((starttime) / 1000 / 60 / 60 / 24 )
ndt = new Date()

y = sdt.getYear()
m = sdt.getMonth() + 1
d = sdt.getDate()
h = starttime

## Calculate Difference Between Two Dates?

Mar 5, 2011

Calculating the difference between two dates in JavaScript is relatively straightforward, provided you choose the right Date methods to work with. Whichever way you get there. code...

## Calculate The Difference In Two Dates That Are In Different Formats?

Jun 17, 2010

How can you calculate the difference in two dates that are in different formats?

I have one date as: '2010-06-16 21:20:44.000'

and the other date as now = new Date();

I want to subtract the dates to see if it is over 30 days.

## Calculating Number Of Days For Leave Management In JS

Mar 16, 2010

i have just started learning & understanding JavaScript. I am just trying to do a small project for my Brother regarding Leave Management, for which its required to Select the From Date & To Date, wherein the Total no. of days should be calculated, excluding the weekends.

I have just worked around to calculate the number of days but i am not sure how to exclude the Weekends. & what if the the Year is a Leap year - So how will i include the Extra days of Feb month. I am using RAD date-pickers to get the Value & split it.

But being a newbie to the Coding world i m really N'joyin the JavaScript....

Just need help regarding this coz i m totally helpless...

I am taking the 2 Dates from 2 Rad Datepickers & diplaying the Number of Days in a Text Box.

Here is My Coding :-

<script type="text/javascript">
function CalcLeaveDays()
{
var

[Code]...

## Date Format - Function To Add Number Of Days

Aug 9, 2011

I need date format of some javascript code I'm using.
Here's the code:
<script language="javascript" type="text/javascript">
function to add number of days (accepts number of days to add)
var thisDate = new Date();
thisDate.setDate(thisDate.getDate() + days);
return thisDate;
</script>
This is what I get: Thu Aug 09 2012 16:45:34 GMT-0500 (CDT)
I just want: Aug 09 2012

## JQuery :: Get Number Of Full Calendar Months Between 2 Dates?

Aug 11, 2010

working further on my project lined out in a previous post - here's another pickle:

I have two dates set, a beginning date and an end date for a period of time. That period can span several years. I now need to calculate the months in that period in accordance with the following reasoning:

[Code]...

## Calculate The Percentage Of A Number?

Apr 12, 2011

I want to calculate the percentage of a number, but I'm getting a really weird result. In the following code f is equal to 3 and x.length is equal to 8. The part that isn't working is emphasised in bold. Basically 3/8 * 100 should result in 37.5 but the result I am getting with the following code is 7934570.3125. How do you calculate this percentage in Javascript?

function displaymember()
{
var m = 1;

[code]...

## Calculate Number Of Nights?

Dec 8, 2009

I have a form that posts a Date In and a Date Out to another form. The variables are datein and dateout in format mm/dd/yyyy Trying to use this function to calculate number of nights :

Code:
<SCRIPT LANGUAGE=javascript>
<!--
function DateDifference()
{
date1= Date.parse(form.datein.value)

[Code]...

## How To Find / Calculate Average Number

Feb 1, 2010

I need to find the average number in javascript. It is the only bit of javascript that I have to do in the course but it carries a high mark of which I cannot afford to lose. Any way the question is : "Write code to calculate the average height and write it out in the browser window"

<SCRIPT LANGUAGE = "JavaScript">
//Experimental results of Table 1 stored in arrays.
var Height = [15,16,17,18,19];
var Number = [2,1,6,4,2];

//Part (ii).
//Write code to declare and initialise new array to represent the third row of the table.
var avg = new Array(5)
var avg = ["60","80","187","180","114"] ;
avg = "60";
avg = "80";
avg = "187";
avg = "180";
avg = "114";
//Part (iv).
//Write code to calculate the average height and write it out in the browser window.
avg = 0;
for (var count = 1; count <= 5; count = count + 1)
Array.average = function(){
var avg = 0;
for(var a = 0; a < this.length; a++){
avg += this[a];
} return avg / this.length;
};

document.write('average height is ' +avg + '<br>');
</BODY></HTML>

## JQuery :: Calculate Number Of Inputs Where Name Starts With Name^ And Input Value Is>0?

Sep 8, 2010

I have many inputs with name totalsum1,totalsum2,totalsum3 etc. I need to calculate number of inputs where name starts with "totalsum" and value is >0. I need to send result to another input with id="#rowtotal".My code:

\$("#rowtotal").val((\$("input[name^=totalsum]").val>0).size()); It's not working. Best RegardsRafa� Koszyk

## JQuery :: Calculate Number Of Months Between Date Ranges?

Aug 3, 2010

For a project that would be too hard to explain, I am working with date ranges. There is a begin date and an end date. With those two variables, I need a function to calculate the number of months between both dates. To be more precise, I need a count of all unique month names in the dates (or month numbers if that is easier) where the range includes the beginning date, the end date, and all dates in between. So I am not looking for full months or an approximation. If only, say, one day of a given month is included in the date range, that adds a month. Also the range can span several years, january 2010 and january 2011 need to count for two different months.

## Program - User Must Enter Number Of Books And Price And Then Calculate The Total Cost Of Items

May 4, 2011

I have a program in which a user must enter number of books and price and then calculate the total cost of the items, i have tried and tried to get it working to no effect can anyone see where i have went wrong.

## Convert Days To Weeks And Days

Jan 17, 2010

converting days to weeks and remaining days. For example : Total days : 152 = 147 Weeks and 5 Days: so I want to write a function getWeeks(152) and it will return an array of 3 elements 0 will be weeks and 1 will be days.

## Get A Date And Time Picker That Will Only Allow To Choose Current Dates Instead Of Past Dates?

Aug 30, 2010

where I can get a Date and Time Picker that will only allow to choose current dates instead of past dates written in Javascript or JQuery?

## How To Get The Num Of Days Absent Using C#

Jul 20, 2005

How to get the num of days absent using c# when start date and end date
are the date format is like this 12/24/12

## Days In The Week

May 8, 2006

I have a marquee in my site and and I have 7 corresponding html pages for 7 days of the week. I would like to have a day detection so (e.g) saturday.html will go in my iframe on my hompage ...

## Checking X Days Out

Aug 5, 2003

I need some JS code that will let me check and see if the date the user enters is within certain guidelines. ie...(no less than 2 days out and no more than 90 days out.)

Someone was kind enough to give me this code, but I can't get it to work correctly. Everything always returns false. If I am reading this write, if it returns false, then the conditions are not met.

Any ideas?

function compareDates(myDate, min, max)
{
var now = new Date().getTime();
var then = new Date(myDate).getTime();
var diff = (now - then) / 86400000;
var valid = true;

var min = min * 86400000;
var max = max * 86000000;

if (diff <= min || diff >= max) {
alert(diff + " " + min + " " + max);
return false;
}
return valid;
}
new compareDates("08/10/03", 2, 90);

## How To Add No. Of Days To Date

Feb 21, 2006

I am using 2 text boxes in form, in first text box i need to enter a date, in second text box i need to enter no. of days,at onblur event of second text box , i need to add value in second text box to first text box,

## Past 7 Days

May 23, 2006

I'm wondering how I can figure out what the past seven days were and loop through them to output?