how to add time plus and recalculate the datetime

Question

i have this datetime format:

Oct 31, 2012 08:59:52

i would like to re-calculate the datetime incremented (for example) of 2 hours or 50 minutes plus how can i do that?

i need to return the same datetime format showed above and not a timestamp!

i need to return to the datetime format i'm using not to timestamp — itsme, Nov 03 '12 at 18:26
Are you trying to change just the string or an actual bonefied date() object in javascript ? — adeneo, Nov 03 '12 at 20:03

score 2 · Accepted Answer · edited May 23 '17 at 11:55

2

var date = new Date("Oct 31, 2012 08:59:52");
var timeInMillis = date.getTime();

Now that you have time in milliseconds, you can just add the time you want in millis.

Eg: 2 hours? So, 2*60*60*1000 + timeInMillis

var newDate = new Date(2*60*60*1000 + timeInMillis);

If you want to convert your newDate into the original format, which is a long process, you can some guidance from here:

My pick of the answers would be:

edited May 23 '17 at 11:55

Community

answered Nov 03 '12 at 17:59

Pulkit Mittal

yes but i need to return to the format i have , not needed timestamp date format – itsme Nov 03 '12 at 18:25

score 1 · Answer 2 · answered Nov 03 '12 at 18:00

You could first parse this to a date:

var d=new Date("October 31, 2012 08:59:25").getTime();

Then add the offset:

d+= (seconds)*1000 + (minutes)*60000 + (hours)*3600000;
var result = new Date(d);

I am just not sure wether it accepts 'Oct' instead of 'October'

score 0 · Answer 3 · answered Nov 03 '12 at 18:00

time_start = new Date(year, month, day, hours, minutes, seconds, milliseconds);
time_finish = new Date() - time_start;

Set the Date using the format listed above. To calculate the interval between two points of time, just subtract the current date from the past date.

3 Answers3