GUIDES Time Get Time and Date from Network
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Binary Data
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Convert String to ArrayBuffer
Convert ArrayBuffer to String
Convert ArrayBuffers to String
Handle Errors Converting ArrayBuffer to String
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Resize an ArrayBuffer
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Optimizing Embedded JavaScript
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Looping through an Array
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Time
Index
Get Unix Time
Get Time of Day
Get Date
Get Time Since System Start
Get Microseconds
Set System Date and Time
Set Real-Time Clock Time
Get Time and Date from Network
Get Time and Date from Real-Time Clock
Sleep

Get Time and Date from Network

Use Network Time Protocol (NTP) to retrieve the current time and date from a network time server.

const ntp = new device.network.ntp.client.io(
	device.network.ntp.client
);

ntp.getTime((error, time) => {
	trace(`NTP time ${time}\n`);
	ntp.close();
});

You can use the time value provided by NTP to set the time and date of the device. This is useful to initialize the time and date at start-up.

Note that the NTP time value is milliseconds but Time.set expects seconds.

const ntp = new device.network.ntp.client.io(
	device.network.ntp.client
);

ntp.getTime((error, time) => {
	if (!error)
		Time.set(time / 1000);
	ntp.close();
});

You can provide a list of time servers to override the system default.

const ntp = new device.network.ntp.client.io({
	...device.network.ntp.client,
	servers: ["pool.ntp.org", "time.google.com", "time.cloudflare.com"]
});