How to convert Date to timestamp using MomentJS?

Question

I used MomentJS to convert local date to UTC date using the following way:

Answer 1

You said:

I used MomentJS to convert local date to UTC date using the following way: moment("2016-10-11 18:06:03").tz("Europe/Paris").format()

That doesn't do that. That converts a local value to Paris time, and emits it as a string in ISO8601 format.

Now I need timestamp from the output value using MomentJS.

That's a different question, and wouldn't involve the output of the above because:

1. You can't get a timestamp from the output string, you'd get it from a moment object. You could parse that string, but that would be silly since you already had a moment object earlier.

2. Timestamps are UTC based, so time zone conversion is irrelevant. You'd get the same timestamp if you didn't convert at all.

You can get a string with a timestamp using .format('X') or .format('x') depending on which precision you want. But it's much cleaner to just get the numerical timestamp using .valueOf() or .unix(), again depending on precision.