NTP internet time servers at linocomm.net

You may delay, but time will not.
Benjamin Franklin (1706-1790)

Nederlands

What is this all about?

Time is one of the most important things in modern society. Without time keeping, it would be difficult to arrange meetings, take the bus or train or be on time on a wedding ceremony. Not only humans rely on time. Every computer has an internal clock which is used when time stamping your email and documents, schedule your backups and warn you when you have an appointment. Therefore also computers should know the current time with some accuracy. To synchronize computers to known good time sources over the internet, the NTP protocol has been defined which allows to obtain the current time from internet time servers.

The servers ntp1.linocomm.net to ntp9.linocomm.net are such public internet time servers, operated by the internet services company Linoplan. The servers provide NTP services to NTP and SNTP clients on the internet. All time servers are at least stratum 2 servers, which means that the servers are directly connected to other time servers which take their time from a number of official reference clocks (atomic clock, radio clock, GPS or whatever) in different geographical regions. Time server ntp4.linocomm.net is a Stratum 1 server located in the Netherlands with its own reference clock. Time synchronisation with several upstream servers in different geographical regions gives redundancy when network failures occur. In practice this means that the time these servers provide are accurate within a few milliseconds. This is good enough for most private and commercial applications.

Server ntp1.linocomm.net is located in a data center in Almaty, Kazakhstan, which makes it the ideal time server for computers in Central Asia, but clients from all over the world are allowed to connect to this server. The only drawback is that distant clients might observe a few more milliseconds error in the received time signal compared to the time served by time servers closer to their location. Time server ntp5.linocomm.net is located in Las Vegas and serves North America. All other servers are located in Western Europe and are primarily intended for the EMEA area. Time server ntp4 is the most accurate in the network because it has its own timebase with a GPS+PPS receiver.

How do I connect to your time servers?

You can add one or more of the server names to your ntpd or chronyd configuration file. With recent versions of ntpd and chronyd you can use the pool directive which adds a pool of servers to the configuration. If you use the pool directive, use the name ntppool.linocomm.net as the domain name.

How well do your time servers perform?

The lists of upstream servers are refreshed every five minutes. The values in the columns delay, offset and jitter are in milliseconds. The delay is a measurement of the network delay when retrieving the time from the remote server. The offset is the current difference between the internal clock of our timeserver and the remote clock. Finally jitter gives the variation in the time difference between subsequent requests.

Current performance for ntp1.linocomm.net (Amsterdam, NL)

NTP1 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   803   +308us[ -338us] +/- 6314us
^+ 2a10-3781-08cc.connected>     2  10   377   891   +273us[ -366us] +/- 6366us
^- ntp-public-2.oma.be           2   9   377   220   +274us[ -429us] +/-   40ms
^* ntp0.rrze.uni-erlangen.de     1   9   377    71  -3283us[-4000us] +/-   10ms
^+ d54c70bd3.static.telenet>     1  10   377  1145  +5813us[+5199us] +/-   11ms
^+ 82-64-171-216.subs.proxa>     1  10   377   832   +398us[ -246us] +/- 8890us

Current performance for ntp2.linocomm.net (Nuremberg, DE)

NTP4 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   744    -56us[ +148us] +/- 7305us
^- time.fu-berlin.de             1  10   377   826   -169us[  +43us] +/-   60ms
^- ntp1.hetzner.de               2   9   377   136   +293us[ +293us] +/-   17ms
^- ntp2.hetzner.de               2   9   377   145  -2254us[-2254us] +/-   20ms
^- ntp3.hetzner.de               2  10   377   799   +114us[ +323us] +/-   11ms

Current performance for ntp3.linocomm.net (Falkenstein, DE)

NTP4 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   913   -132us[+7323ns] +/- 7888us
^- time.fu-berlin.de             1   9   377   317   -183us[ -183us] +/-   68ms
^- ntp1.hetzner.de               2   9   377   343    -46us[  -46us] +/-   30ms
^- ntp2.hetzner.de               2   7   377    13   -209us[ -209us] +/-   18ms
^- ntp3.hetzner.de               2   8   377   148  +2390ns[+2390ns] +/-   19ms

Current performance for ntp4.linocomm.net (Donkerbroek, NL)

NTP4 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntp0.nl.uu.net                1   9   377   351   -147us[ -146us] +/- 3570us
^+ time1.esa.int                 1   9   377   379   -124us[ -123us] +/- 3581us
^+ ntp1.time.nl                  1  10   377   899   -133us[ -145us] +/- 4592us

Current performance for ntp9.linocomm.net (Nuremberg, DE)

NTP9 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   415  -1819us[-1799us] +/- 8846us
^- time.fu-berlin.de             1  10   377    25   -616us[ -616us] +/-   72ms
^- ntp1.hetzner.de               2  10   377    19   -400us[ -400us] +/-   18ms
^- ntp2.hetzner.de               2  10   377   145   -582us[ -582us] +/-   18ms
^- ntp3.hetzner.de               2  10   377   304   -201us[ -201us] +/-   18ms

Current performance for ntp16.linocomm.net (Gravelines, FR)

NTP16 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^- ntp-public-2.oma.be           2  10   377   153  -1937us[-1937us] +/-   43ms
^* ntp0.rrze.uni-erlangen.de     1  10   377  1013    -19us[  -19us] +/- 7275us

Current performance for ntp17.linocomm.net (Falkenstein, DE)

NTP17 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   688   -122us[ -109us] +/- 7889us
^- time.fu-berlin.de             1  10   377   536   -186us[ -186us] +/-   65ms
^- ntp1.hetzner.de               2   9   377    17    -62us[  -62us] +/-   19ms
^- ntp2.hetzner.de               2   8   377   167   -316us[ -316us] +/-   16ms
^- ntp3.hetzner.de               2   8   377     9  +9249ns[+9249ns] +/-   21ms

Current performance for ntp18.linocomm.net (Roubaix, FR)

NTP18 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^- ntp-public-2.oma.be           2  10   377    29  -1885us[-1885us] +/-   44ms
^* ntp0.rrze.uni-erlangen.de     1   9   377    53  -4119ns[-9470ns] +/- 6991us

Current performance for ntp21.linocomm.net (Roubaix, FR)

NTP21 error
Tue  1 Sep 20:31:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   628   -214us[ -241us] +/- 8960us
^+ 2a10-3781-08cc.connected>     2  10   377    70   -430us[ -430us] +/- 8855us
^- ntp-public-2.oma.be           2   9   377   261  -1999us[-2030us] +/-   41ms
^+ ntp0.rrze.uni-erlangen.de     1  10   377   672   -196us[ -222us] +/- 7080us
^+ d54c70bd3.static.telenet>     1  10   377   212  +5799us[+5768us] +/-   11ms
^* 82-64-171-216.subs.proxa>     1  10   377   122    -22us[  -55us] +/- 5104us

Current performance for ntp22.linocomm.net (Paris, FR)

NTP22 error
Tue  1 Sep 20:31:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   284  -1856us[-1088us] +/-   12ms
^+ 2a10-3781-08cc.connected>     2  10   377   699  -1525us[ -908us] +/-   12ms
^- ntp-public-2.oma.be           2  10   377   773  -1672us[-1082us] +/-   39ms
^* ntp0.rrze.uni-erlangen.de     1  10   377   277   +174us[ +945us] +/- 8166us

Current performance for ntp23.linocomm.net (Paris, FR)

NTP23 error
Tue  1 Sep 20:31:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   140   +414us[ +414us] +/-   11ms
^+ 2a10-3781-08cc.connected>     2  10   377   742  -1338us[-1338us] +/-   12ms
^- ntp-public-2.oma.be           2  10   377   714   +287us[ +287us] +/-   37ms
^* ntp0.rrze.uni-erlangen.de     1  10   377   865   +627us[+1153us] +/- 8215us

Current performance for ntp24.linocomm.net (Paris, FR)

NTP24 error
Tue  1 Sep 20:31:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^- erquy.linocomm.net            2  10   377   181  -1654us[-1654us] +/-   12ms
^- 2a10-3781-08cc.connected>     2  10   377   197  -1161us[-1161us] +/-   13ms
^- ntp-public-2.oma.be           2  10   377   221  -1532us[-1532us] +/-   46ms
^+ ntp0.rrze.uni-erlangen.de     1  10   377   509  -5192ns[-5192ns] +/- 7816us
^- d54c70bd3.static.telenet>     1  10   377   612  +7110us[+7110us] +/-   13ms
^* 82-64-171-216.subs.proxa>     1  10   377   681   +410us[+1343us] +/- 3819us

Current performance for ntp25.linocomm.net (Falkenstein, DE)

NTP25 error
Tue  1 Sep 20:31:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   751    -56us[  +30us] +/- 7763us
^- time.fu-berlin.de             1   9   377   115   -508us[ -508us] +/-   71ms
^- ntp1.hetzner.de               2   9   377   180   -426us[ -426us] +/-   17ms
^- ntp2.hetzner.de               2   7   377    54   -586us[ -586us] +/-   18ms
^- ntp3.hetzner.de               2   8   377   138   -356us[ -356us] +/-   20ms