Subtracting Hours From Date String

I am working in node js and by using moment-timezone package I have generated a date: 2017-4-10 19:04:47 Below is the code I used to generate this date time which is for timezone A

Solution 1:

You can simply use moment subtract method.

Here a working sample:

// Current time in Shanghaivar m = moment.tz('Asia/Shanghai');
console.log(m.format('Y-M-D HH:mm:ss'));
// Subtract 9940 hoursconsole.log(m.subtract(9940, 'hours').format('Y-M-D HH:mm:ss'));

<scriptsrc="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script><scriptsrc="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.7/moment-timezone-with-data-2010-2020.min.js"></script>

Note that you should use lowercase mm to show minutes because uppercase MM represents months. See format tokens.