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
Sun  7 Jun 16:55:01 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   589   +418us[ +196us] +/- 8528us
^+ 2A10-3781-08cC.connected>     2  10   377   726   -296us[ -515us] +/- 8464us
^- ntp-public-2.oma.be           2   9   377   505   +614us[ +389us] +/-   24ms
^+ ntp0.rrze.uni-erlangen.de     1   9   377   245  -3627us[-3627us] +/-   11ms
^* d54c70bd3.static.telenet>     1  10   377   258  +3961us[+3729us] +/- 9605us
^+ 82-64-45-50.subs.proxad.>     1  10   377   741   -935us[-1154us] +/-   12ms

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

NTP4 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   862   -638us[ -661us] +/- 7889us
^- time.fu-berlin.de             1  10   377   771   -766us[ -766us] +/-   68ms
^- ntp1.hetzner.de               2   9   377   171   -568us[ -568us] +/-   33ms
^- ntp2.hetzner.de               2   9   377   164   -703us[ -703us] +/-   28ms
^- ntp3.hetzner.de               2  10   377   172   -375us[ -375us] +/-   19ms

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

NTP4 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   353   22m   -596us[ -620us] +/- 8328us
^- time.fu-berlin.de             1  10   377   420   -967us[ -967us] +/-   59ms
^- ntp1.hetzner.de               2  10   377    92   -776us[ -776us] +/-   22ms
^- ntp2.hetzner.de               2   9   377    63   -976us[ -976us] +/-   29ms
^- ntp3.hetzner.de               2  10   377   454   -723us[ -723us] +/-   13ms

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

NTP4 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ ntp0.nl.uu.net                1  10   377   900   -309us[ -309us] +/- 4609us
^* time1.esa.int                 1  10   377  1016   -248us[ -605us] +/- 4421us
^+ ntp1.time.nl                  1  10   377    97   -447us[ -447us] +/- 5255us

Current performance for ntp5.linocomm.net (Paris, FR)

NTP5 error
Sun  7 Jun 08:34:01 UTC 2026

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

NTP9 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377  1014   -275us[ -263us] +/- 7528us
^- time.fu-berlin.de             1  10   377   663   -441us[ -441us] +/-   70ms
^- ntp1.hetzner.de               2  10   377   804   -325us[ -325us] +/-   24ms
^+ ntp2.hetzner.de               2  10   377   618   -191us[ -191us] +/-   40ms
^- ntp3.hetzner.de               2  10   377    75   -344us[ -344us] +/-   20ms

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

NTP16 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^- ntp-public-2.oma.be           2  10   377   846  -1504us[-1502us] +/-   33ms
^* ntp0.rrze.uni-erlangen.de     1  10   377   109    -36us[  -34us] +/- 7224us

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

NTP17 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377    77   -353us[ -276us] +/- 8046us
^- time.fu-berlin.de             1  10   377   644   -473us[ -398us] +/-   71ms
^- ntp1.hetzner.de               2   9   377   117   -281us[ -203us] +/-   22ms
^- ntp2.hetzner.de               2   9   377   265   -465us[ -387us] +/-   25ms
^- ntp3.hetzner.de               2  10   377   983   -315us[ -241us] +/-   26ms

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

NTP18 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^- ntp-public-2.oma.be           2   9   377   187  -1360us[-1360us] +/-   29ms
^* ntp0.rrze.uni-erlangen.de     1  10   377   317    +11us[  +45us] +/- 6961us

Current performance for ntp20.linocomm.net (Falkenstein, DE)

NTP20 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   23m   -327us[ -458us] +/- 7747us
^- time.fu-berlin.de             1  10   377   879   -635us[ -635us] +/-   67ms
^- ntp1.hetzner.de               2   9   377    28   -520us[ -520us] +/-   23ms
^- ntp2.hetzner.de               2  10   377    75   -685us[ -685us] +/-   28ms
^- ntp3.hetzner.de               2  10   377   812   -490us[ -490us] +/-   29ms

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

NTP21 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   666   -989us[ -989us] +/-   11ms
^+ 2a10-3781-08Cc.connected>     2  10   377   738  -1004us[-1004us] +/-   11ms
^- ntp-public-2.oma.be           2   9   377   247  -2246us[-2246us] +/-   28ms
^+ ntp0.rrze.uni-erlangen.de     1  10   377    12   -916ns[ -916ns] +/- 8118us
^* d54c70bd3.static.telenet>     1  10   377   778  +5640us[+5608us] +/-   11ms
^+ 82-64-45-50.subs.proxad.>     1  10   377   833   -117us[ -148us] +/- 7567us

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

NTP22 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   818   -624us[ -774us] +/-   16ms
^+ 2A10-3781-08cC.connected>     2  10   377   732  -2051us[-2202us] +/-   14ms
^- ntp-public-2.oma.be           2  10   377   204  -1655us[-1655us] +/-   34ms
^* ntp0.rrze.uni-erlangen.de     1  10   377   716   -415us[ -565us] +/- 7895us

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

NTP23 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   816  -2742us[-2742us] +/-   15ms
^? 2a10-3781-08CC.connected>     0  10     0     -     +0ns[   +0ns] +/-    0ns
^- ntp-public-2.oma.be           2  10   377   876  +1600us[+1600us] +/-   38ms
^* ntp0.rrze.uni-erlangen.de     1  10   377   920   -548us[ -784us] +/- 7914us

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

NTP24 error
Sun  7 Jun 16:55:02 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ erquy.linocomm.net            2  10   377   815  -2574us[-2963us] +/-   14ms
^+ 2a10-3781-08cc.connected>     2  10   377   815  -1010us[-1398us] +/-   13ms
^+ ntp-public-2.oma.be           2  10   377   932   -420us[ -811us] +/-   36ms
^+ ntp0.rrze.uni-erlangen.de     1  10   377  1010   -734us[-1129us] +/- 7860us
^+ d54c70bd3.static.telenet>     1  10   377   637  +6434us[+6051us] +/-   14ms
^* 82-64-45-50.subs.proxad.>     1  10   377   415   -223us[ -600us] +/- 5686us

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

NTP25 error
Sun  7 Jun 16:55:03 UTC 2026
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* ntps1-0.eecsit.tu-berlin>     1  10   377   947   -241us[ -142us] +/- 8058us
^- time.fu-berlin.de             1  10   377   915   -385us[ -385us] +/-   67ms
^- ntp1.hetzner.de               2   9   377   259   -182us[ -182us] +/-   33ms
^- ntp2.hetzner.de               2  10   377    40   -372us[ -372us] +/-   29ms
^- ntp3.hetzner.de               2  10   377   243   -197us[ -197us] +/-   16ms