Blog of activities for pool of time servers at chrony.eu
2025-08-15: Upgrade to Debian 13 (trixie).
As our cluster chrony.eu of servers is based on Debian distribution we migrated whole cluster to Debian 13 (trixie). It went without problems in relative short amount of time. We appreciate work of many volunteers on Debian project and many other projects on which Debian is based.
Same as Debian we offer our time services for free for public benefit.
2025-06-12: Upgrade of chrony server.
Today we preformed regular maintenance upgrade of chrony server. We strive to upgrade to each new version as soon as it is available. Main reasons are security related. Sometimes new functionality is available which is handy for easier maintenance or delivers new functionality from user perspective. Latest version of chrony is 4.7 and we just updated whole cluster chrony.eu to this version today.
Picture: Endless maze of software updates...
2024-09-12: Coordinated Lunar Time (LTC)
NASA will coordinate with U.S. government stakeholders, partners, and international standards organizations to establish a Coordinated Lunar Time (LTC) following a policy directive from the White House in April. The agency’s Space Communication and Navigation (SCaN) program is leading efforts on creating a coordinated time, which will enable a future lunar ecosystem that could be scalable to other locations in our solar system.
The lunar time will be determined by a weighted average of atomic clocks at the Moon, similar to how scientists calculate Earth’s globally recognized Coordinated Universal Time (UTC).
continue reading : https://www.nasa.gov/.
2024-04-21: Statictical data for chrony.eu cluster.
On world wide scale cluster serves 0.052% of NTP traffic from NTP pool. In other words cluster serves every 1/1923th of NTP packet on world. This is not a huge percentage but still presents more than 1640 packets per second. Percentages are better for IPv6 since there is less IPv6 NTP serves, but supprisingly cluster serves packets to Brazil and China IP address space as well. Cluster resides in Slovenia so dominance from Slovenina IP address space is natural. Based on number of NTP severs in different regions, this cluster of four servers is doing pretty well. Servers in cluster serve on average 2.3 times more packets per second than average NTP server. This is probbaby because all servers in cluster are stratum one servers, and they have better chance for selection.
2024-02-09: Network provider service disruption.
Today, 2024-02-09, we had an internet service disruption from our network provider T-2. The disruption lasted from 11:32 CET to 12:58 CET (from 10:32 UTC to 11:58 UTC). During this time, all network NTP services were unavailable. According to preliminary news, something went wrong at the T-2 network operator electrical substation. At the time of writing this article (2024-02-09 at 16:35 CET), all chrony.eu servers are up and running, but not all are yet promoted to full operation from the NTP pool due to a low score. The expected normal operation of service, with minimum score 10, will be by 2024-02-09, 17:15 CET.
