NTP, Network Time Protocol for time synchronization between computer systems over UDP.

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Sync Raspberry Pi with NTP Server on Boot

I am using my Raspberry Pi with OpenMediaVault, a variant of Debian/Raspian intended for running a NAS server. The web interface for the operating system features a user interface that allows for ...
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2answers
69 views

Raspberry pi time wrong

My raspberry Pi 2 has a wrong date and it is not a timezone problem since UTC time right now is (6:53 PM Thursday, June 2, 2016) and running: pi@raspberrypi2:~ $ date -u mié jun 1 14:13:45 UTC 2016 ...
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24 views

Wrong date after reboot … always the same… 2016-10-02 (future!)

Why my Raspberry after reboot sets date to 2016-10-02, every time? Date after reboot is exactly 2016-10-02 every time.... there is NTP deamon that changes it, but before it, it's always 2016-10-02...
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1answer
56 views

How can a raspberry pi get time from another pi

I'm trying to set a slave pi to let get time from master pi using ntp service. The master pi has been set to be a hotspot (which is not connected to the internet) and the slave pi connect to it via ...
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3answers
180 views

Raspberry Pi Time is off by 45 min

I'm currently running a Pi as a file and Webserver on my small home network. My two Windows-10 PCs have the correct time, but I noticed the Pi time is approx 45 minutes off. No big deal, but when I ...
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1answer
101 views

Make sntp run on boot in Jessie

I am building a raspbian-based distro (FullPageOS), and it seems like on boot of the latest Jessie sntp service is running, internet connection is established, but sntp is not updating the clock to ...
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1answer
153 views

Default NTP server on Arch Linux for rPI 2

I have a RPi 2 running Arch Linux (Linux 4.1.6-2-ARCH), I checked and it does not use ntpd but systemd-timesyncd. I quote from timesyncd wiki page To add time servers or change the provided ones,...
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1answer
1k views

Time and date on clean install of raspbian is very wrong

The time and date of my pi with a clean install of raspbian running is very wrong. If I run date now, it tells me this: Thu May 7 01:39:43 2015. Neither the time or date is right. I've tried to ...
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3answers
2k views

Timezone correctly set but incorrect output

I'm using a Raspberry 1B and I have reset the timezone with sudo dpkg-reconfigure tzdata I want to use Europe/Paris. It say it works correctly, the time is said to be CEST but it is totally wrong I ...
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90 views

How do I set NTP time on my PiCamera/camera.py video feed?

I want to synchronize multiple RPIs to a single clock. For this I use a computer as the ntp server for all of them. All the RPIs now have the same time(server time). After synchronizing I want record ...
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197 views

Get time using NTP from LAN PC [closed]

For my application, the Raspberry Pi is not connected to the Internet. Instead, it communicates to my PC via a direct ethernet connection. The PC is a Windows 7 desktop PC which is NOT connected to ...
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1answer
336 views

configure timezone and DST settings

I'd like my raspbian to switch to european summertime (timezone Berlin) automatically. I've already configured the timezone to Europe/Berlin with dpkg-reconfigure tzdata and the current settings are ...
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1answer
783 views

Cannot ping localhost

While setting up an ntp client/server, I found a weird error where the client cannot check it's own time. I have traced this back to the fact that all of these commands time out: ping localhost ping ...
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2answers
865 views

How to run the NTP daemon automatically?

On my RaspBMC, the time drifts pretty much (more than a day in one month). So I started to use NTP, but have problems running it. I called sudo update-rc.d ntp enable, I also added DAEMONS=(!hwclock ...
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2answers
65 views

why two RPis show quite different ntp results?

I have two RPis running on the same network, with the same Internet access. One of them is a B and the other one a B+ model. Both run the same distro with ntp enabled for quite a long time (this is to ...
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1answer
589 views

Raspberry Pi, GPS (adafruit) and ntp does not work

How to achieve that ntpd synchronizes time from GPS? I have adafruit ultimate gps (without battery). It is connected to raspberry and i got fix. PPS pin not connected. I configured ntpd to use GPS ...
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1answer
204 views

Update time whenever possible

The Pi running Raspbian does not have a hardware clock or RTC (serial is being used by XBee) and whenever its turned off and restarted again, the time goes out of wack and we need to SSH in to ...
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1answer
3k views

How to use NTP on Raspberry Pi by local NTP server

I have Raspberry Pi Model-B with the Raspbian Wheezy OS and a local NTP server. I want to synchronise my Raspberry Pi board with my local NTP server (not using the Internet). All the process must be ...
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1answer
256 views

Why my time is not correct, it is always 12 hours late

exact with the minutes but wrong with the hours. Mon Sep 8 08:54:44 BST 2014. When actually it is 20:54. I did : sudo /etc/init.d/ntp restart at least ten times no avail. My raspi activates a ...
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0answers
116 views

ntpq -p reports all available servers have stratum 16

ntpq -p reports all available servers have stratum 16. Therefor the time is cannot be set. However I can ping all the servers. ntpq -p remote refid st t when poll reach delay ...
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1answer
102 views

Under what conditions is the system clock running?

The Raspberry Pi has no battery powered hardware clock, so it needs to fetch time via NTP and store it via fake-hwclock to not start at 1970 again after a power-loss. When the device is running the ...
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2answers
293 views

When do I need accurate time via NTP?

The Raspberry Pi has no hardware clock, so the OS has to fetch the date and time every time when it boots if one wants accurate time. Do I need accurate NTP time at all and what use cases require it? ...
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5answers
16k views

NTPd is not updating time

I am running raspbian wheezy, upgraded to all the latest packages. The only custom package installed on it is Oracle's Java 8, everything else and its configuration is stock. Yesterday I noticed that ...
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0answers
301 views

NTP time off by 24 minutes

I have added dpkg-reconfigure ntp to bash.rc and run it several times in the terminal. I have changed my timezone around. I have gone to just ethernet and rebooted, and every single time, my pi time ...
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3answers
9k views

Incorrect time until I restart the ntp server (multiple times)

I am using Raspberry PI Model B with Raspbian, installed by NOOBS, upgraded to the latest version. The NTP server is automatically started in the boot process. When I boot my RPI, the time is always ...
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3answers
5k views

Can't access NTP server with a static IP address

The time on my Raspberry Pi is off by a few days. When I try $ sudo dpkg-reconfigure ntp it doesn't change the time, but some stuff comes up in the syslog: Oct 21 18:27:45 airpiClock ntpd[2142]: ...
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1answer
4k views

Time sync with WiFi

It looks like the ntpd doesn't get the correct time with WiFi. My Raspberry Pi's are connected via WiFi dongles (which work without problems) to my network. The odd thing is, I read that the time ...
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5answers
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How to force NTPD to update date/time after boot?

The Raspberry Pi lacks a hardware clock. How do I force NTPD to update date/time immediately after every boot? I'm running Raspbian and the Raspberry Pi is connected using an Ethernet cable.
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3answers
8k views

Time and date in Raspbian vs. OpenELEC (one works, one not)

I've set up my Raspberry Pi from scratch with BerryBoot set up multiple OS's to boot into. Whenever I boot into 'OpenELEC 2013.01', the time and date gets set correctly, but whenever I boot into '...
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3answers
3k views

Why isn't NTPd updating local time?

I'm really happy with my Pi so far, but now that the website I'm developing on it is starting to need the time and date, I thought it was about time to get NTPd working. So I installed an NTP server ...
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1answer
8k views

NTPD not actually setting the time [closed]

NTPD appears to run successfully and poll the time server, however it doesn't actually set the time. # ntpd -d & ntp engine ready reply from 83.170.75.28: offset 1348642593.061240 delay 0.035977,...
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4answers
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How is time kept on the Raspberry Pi?

How is time kept on a Raspberry Pi with the latest Raspbian release? What sets the internal clock from an NTP server? What happens when no NTP server is available? From my program I am trying to ...