Legal & credits

Disclaimer

This service is provided “as is”, without warranty of any kind, express or implied, including any warranty of accuracy, availability, reliability, merchantability or fitness for a particular purpose. You use it at your own risk.

The operator is not liable for any loss or damage, direct or indirect, arising from the use of, or the inability to use, this server or this website, to the fullest extent permitted by law.

The server is run by an individual as a public service. It may be changed, interrupted or withdrawn at any time without notice. The live telemetry shown on the home page is provided for information only and is not a guarantee. Do not rely on this server as the only time source for safety-critical systems, or where certified or legally traceable time is required.

Usage policy

Please do not hard-code this server's hostname or IP address into firmware or software distributions without the operator's prior written consent. If you would like to ask, get in touch.

The server is open to everyone for ordinary use, for example by adding it to the configuration of your own computers, servers and network equipment. Please keep to the polling intervals that your time software chooses by default. The operator may restrict or block clients that send excessive or abusive traffic.

Service level

There is no service level agreement for this server. It is provided free of charge, on a best-effort basis, by an individual, and no commitment is made about its availability, accuracy or response times, or about support.

The aim is to keep the server available more than 99% of the time and to put problems right promptly. Even so, maintenance, power or internet outages, hardware faults or a loss of satellite signals can interrupt it, or make it fall back to its backup time sources, sometimes without notice. Planned maintenance is announced at the top of this website whenever possible, and the live telemetry on the home page shows how the server is doing at any moment.

Questions and problem reports sent through the contact page are answered when possible, without a guaranteed response time. For dependable timekeeping, configure your devices with several independent time servers, so that they keep correct time even when this one is unavailable.

Privacy

This website uses no cookies, analytics or other tracking, and it loads nothing from other websites: the fonts, scripts and pictures all come from this server.

The setup guide keeps one small note in your browser's own storage: which of its code blocks you have copied, so that they are still marked when you come back. The note stays in your browser and is never sent to this server. The Clear marks button in the guide's “On this page” box removes it, as does clearing this website's data in your browser.

Like most web servers, it keeps standard access logs: the visitor's IP address, the time, the page or file requested, the page that linked to it, and the browser's own description of itself. The logs are used only for security and troubleshooting, are not shared with anyone, and are deleted automatically after a limited period.

When you display the email address on the contact page, the server keeps a scrambled (hashed) form of your network address in a temporary file, to limit repeated requests. Your actual network address is not stored there, and the file is deleted when the web server restarts.

The time server does not record individual time requests on disk. To apply its rate limits, chrony keeps a list of recent client addresses in memory only. The live telemetry includes no information about individual visitors or clients.

Credits

The time service uses chrony as its NTP and NTS server, with gpsd providing the interface to the GNSS receiver. The TLS certificate for this website is issued by Let's Encrypt, and chrony uses a copy of the same certificate to secure NTS connections.

This website is served by the Apache HTTP Server with PHP, on Raspberry Pi OS, and its live telemetry is produced by a small Python program.

Text on this website is set in Inter, © The Inter Project Authors, under the SIL Open Font License 1.1. Code and the clock are set in DejaVu Sans Mono, © Bitstream, Inc., under the Bitstream Vera Fonts licence; DejaVu changes are in the public domain. The fonts are served from this website, and their licence texts are in fonts/LICENSE.txt.