Manipulate time variable in javascript - add hours to time variable

Question

I am getting data by using a json file and one of the variable is about time, like 19:00, as GMT+0. If i would like to convert this to GMT+2, i will need to add 2, but i couldnt figure out how... I am trying to do this in a Titanium project.

Isn't json returning an ascii text value? If so, can't you just replace the +0 with a +2? — Chizl, Mar 28 '13 at 20:41
no, the variable is just "19:00", how can i edit it so that it become "21:00" as gmt+2? — Tel4tel, Mar 28 '13 at 20:46

score 1 · Accepted Answer · answered Mar 28 '13 at 21:04

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var time = "19:00";
function incHour(t,hr){ return parseInt(hr) + 2; }
time = time.replace( /^(\d{1,2})/, incHour );

answered Mar 28 '13 at 21:04

Joe Johnson

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score 1 · Answer 2 · answered Mar 29 '13 at 02:09

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i always recommend momentjs, if you think you are going to have to do more time manipulation

http://momentjs.com/

answered Mar 29 '13 at 02:09

Aaron Saunders

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score 0 · Answer 3 · edited May 23 '17 at 12:21

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Ref: How to add 30 minutes to a JavaScript Date object?

var d1 = new Date ('6/29/2011 4:52:48 PM'),
    d2 = new Date ( d1 );
d2.setHours ( d1.getHours() + 2 );
alert ( d2 );

edited May 23 '17 at 12:21

Community

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answered Mar 28 '13 at 21:00

Chizl

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Manipulate time variable in javascript - add hours to time variable

3 Answers3