NTP Call from node red

[uzair...@jintech.com]

I want to get NTP server time from my node red to ensure accurate time before my time dependent tasks? How can i do it?

[Colin Law]

Usually you would rely on the operating system to maintain an accurate
time for you. Is there some reason you cannot do that in this case?

On 28 August 2017 at 13:35, <uzair...@jintech.com> wrote:
> I want to get NTP server time from my node red to ensure accurate time
> before my time dependent tasks? How can i do it?
>

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[uzair...@jintech.com]

Pi that is running node red is not under my control whole time and i want to ensure it in my node red that time is set valid. It has caused some issue to me in last few days due to time sync issue on Pi.

[Colin Law]

Possibly you could use an exec node to force an ntp sync and check the
response from that.

Colin

> https://groups.google.com/d/msgid/node-red/60b76cd2-83bf-4bf0-9158-28b1ecf074eb%40googlegroups.com.

[Dave C-J]

Probably only if you are running Node-RED as root. And if you were then you would have control over ntp anyway 

--

Sent from phone.

[Colin Law]

Rather than run as root use visudo to allow the node red user to run
ntpdate without requiring a password. Then the exec node should be
able to run
sudo ntpdate ....

Colin

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[Julian Knight]

As a potentially simpler alternative - simply use a web time API and check against the current device time - if too far out alert the user to fix it before allowing the flow to run :)