Adding dates

[Guest cfican]

How do I add a number of days > 30 to a specified date? Code here retrieves the number of days from a target date (seedDay) and I want to add that value (daysSince) to the seed day. (it is calculating the start and end dates of two week time periods given any date in between)

var seedDay = new Date(2006,8,23);var aDay = 24*60*60*1000;var today = new Date();seedTime = seedDay.getTime();presentTime = today.getTime();daysSince = presentTime - seedTime;daysSince = Math.ceil(daysSince/aDay);bequith = (daysSince/14);		// the goal here is to get an end date notbequith = Math.ceil(bequith);		// this is getting the number of days from the while (bequith < notbequith) {		// start date to the date I want  	daysSince = daysSince + 1;	// it works, I want to add this number to a date object	bequith = (daysSince/14);	notbequith = Math.ceil(bequith);	}// daysSince this comming pay period is 28 days since the seedDay, so . . .seedDay.getDay() + daysSince; // <-- this does not work

Thankscfican

[jesh]

http://www.w3schools.com/js/js_obj_date.asp

And in the following example we set a Date object to be 5 days into the future:

var myDate=new Date()myDate.setDate(myDate.getDate()+5)

Note: If adding five days to a date shifts the month or year, the changes are handled automatically by the Date object itself!

I think if you change the last line of your code to something like the following it should work:

seedDay.setDate(seedDay.getDate() + daysSince);

[jhecht]

use quotes around this:

//var seedDay = new Date(2006,8,23);//This should bevar seedDay = new Date("08/23/2006 00:00:00");

Also you could juse compare the UNIX timestamp from the seeded day and the current day, and then just divide by 100 multiplied by 60*60*24(60 seconds multiplied by 60 minutes in one hour multiplied by 24 hours in one day), which would give you how many days until the next day, or FROM the next day(you may have to doa check if the returned value is negative and accomadate the text for that)If you want i can show you a real quick script for it.

[Guest cfican]

http://www.w3schools.com/js/js_obj_date.aspI think if you change the last line of your code to something like the following it should work:

seedDay.setDate(seedDay.getDate() + daysSince);

Thank you