New date() bug?

General
1

Hi!

Im very new to Node-Red and are trying to create a function.

My code looks like this:

let startDate = new Date(2022,8,7,0,0,0,0);

node.warn(["your_variable=", startDate]);

the debug log output is this:

2022-09-06T22:00:00.000Z

While im expecting it to be 2022-08-07T00:00:00.000Z

Im using Home assistant OS on a Raspberry Pi 4 and the location settings are correct.

Any idea?
Thanks in advance!

2

Hi @Draax

The new Date(...) function expects a monthIndex, which starts at 0 for January. So passing in an 8 as you are, actually means September.

As for the hours - the function creates the time in the timezone of the device its running on. If you are passing in 00:00:00 as the time, the fact it results in 22:00:00Z suggests you are in a GMT+2 location.

3

Hi @knolleary,
Much appreciated for your feedback!

I understand the month index part but if possible could you please provide me an example of how I could achieve creating a starting date of today with the hours 00:00:00?

4

try without the time ie =new Date(2022, 7, 7)

5

Do you want midnight local time or midnight UTC?

6

Your new Date (2022, 8, 7, 0, 0, 0, 0); What you get is a Date instead of a str and your time zone ratio is +2. It is recommended to use moment to solve it. This module is very powerful

7

It seems that @Draax has lost interest in the question.

8

Apologize for late response, thanks everyone for the input!
@knolleary 's answer resolved everything :slight_smile:

9

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.