netravnen/Public_Time_Servers.md

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List of Top Public Time Servers

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Public_Time_Servers.md

Google Public NTP [AS15169]:

time.google.com
time1.google.com
time2.google.com
time3.google.com
time4.google.com

Cloudflare NTP [AS13335]:

time.cloudflare.com

Facebook NTP [AS32934]:

time.facebook.com
time1.facebook.com
time2.facebook.com
time3.facebook.com
time4.facebook.com
time5.facebook.com

Microsoft NTP server [AS8075]:

time.windows.com

Apple NTP server [AS714, AS6185]:

time.apple.com
time.euro.apple.com

DEC/Compaq/HP:

clepsydra.dec.com
clepsydra.labs.hp.com
clepsydra.hpl.hp.com

NIST Internet Time Service (ITS) [AS49, AS104]:

time-a-g.nist.gov
time-b-g.nist.gov
time-c-g.nist.gov
time-d-g.nist.gov
time-a-wwv.nist.gov
time-b-wwv.nist.gov
time-c-wwv.nist.gov
time-d-wwv.nist.gov
time-a-b.nist.gov
time-b-b.nist.gov
time-c-b.nist.gov
time-d-b.nist.gov
time.nist.gov
utcnist.colorado.edu
utcnist2.colorado.edu

Hetzner Online [AS24940]:

ntp.hetzner.de
ntp1.hetzner.de
ntp2.hetzner.de
ntp3.hetzner.de

NTT Communications [AS2914]:

time.gin.ntt.net
time1.gin.ntt.net / x.ns.gin.ntt.net
time2.gin.ntt.net / y.ns.gin.ntt.net

VNIIFTRI:

Stratum 1:

ntp1.vniiftri.ru
ntp2.vniiftri.ru
ntp3.vniiftri.ru
ntp4.vniiftri.ru
ntp1.niiftri.irkutsk.ru
ntp2.niiftri.irkutsk.ru
vniiftri.khv.ru
vniiftri2.khv.ru

Stratum 2:

ntp21.vniiftri.ru

Mobatime:

Stratum 1:

ntp.mobatime.ru

NTP SERVERS:

Stratum 1:

ntp1.stratum1.ru
ntp2.stratum1.ru
ntp3.stratum1.ru
ntp4.stratum1.ru
ntp5.stratum1.ru

Stratum 2:

ntp2.stratum2.ru
ntp3.stratum2.ru
ntp4.stratum2.ru
ntp5.stratum2.ru

Stratum1:

Stratum 1:

stratum1.net

Company Delfa Co. Ltd. [AS8915]:

ntp.ru

ACO.net [AS1853]:

ts1.aco.net
ts2.aco.net

Berkeley [AS25]:

Stratum 1:

ntp1.net.berkeley.edu
ntp2.net.berkeley.edu

Georgia State University [AS10631]:

ntp.gsu.edu

University of Saskatchewan [AS22950]:

tick.usask.ca
tock.usask.ca

NSU [AS3335]:

Stratum 2:

ntp.nsu.ru

RSU [AS47124]:

Stratum 1:

ntp.rsu.edu.ru

National Institute of Information and Communications Technology [AS9355]:

ntp.nict.jp

HE.net [AS6939]:

clock.nyc.he.net
clock.sjc.he.net

TRC Fiord [AS28917]:

ntp.fiord.ru

Netnod NTP service [AS57021]:

Stratum 1:

Göteborg:
- gbg1.ntp.se
- gbg2.ntp.se
Malmö:
- mmo1.ntp.se
- mmo2.ntp.se
Stockholm:
- sth1.ntp.se
- sth2.ntp.se
Sundsvall:
- svl1.ntp.se
- svl2.ntp.se
Anycast address for nearest NTP server of the above:
- ntp.se

YYCIX NTP [AS396515]:

ntp.yycix.ca

MSK-IX NTP [AS43832]:

Stratum 1:

ntp.ix.ru

Trabia-Network [AS43289]:

time-a.as43289.net
time-b.as43289.net
time-c.as43289.net

RIPE [AS3333]:

ntp.ripe.net

Internet Systems Consortium [AS1280]:

clock.isc.org (prev ntp.isc.org)

TimeNL/SIDN Labs [AS1140]:

ntp.time.nl (ntp1.time.nl)

Kantonsschule Zug [AS34288]:

ntp0.as34288.net
ntp1.as34288.net

INTERNET MULTIFEED CO. [AS7521]:

ntp1.jst.mfeed.ad.jp
ntp2.jst.mfeed.ad.jp
ntp3.jst.mfeed.ad.jp

NTP Pool:

Other:

.mil:

tick.usno.navy.mil
tock.usno.navy.mil
ntp2.usno.navy.mil

.edu:

utcnist2.colorado.edu
timekeeper.isi.edu
rackety.udel.edu
mizbeaver.udel.edu
otc1.psu.edu
gnomon.cc.columbia.edu
navobs1.gatech.edu
navobs1.wustl.edu
now.okstate.edu
ntp.colby.edu
ntp-s1.cise.ufl.edu

.com:

ntpstm.netbone-digital.com
nist1.symmetricom.com

.net:

t2.timegps.net
gps.layer42.net
ntp-ca.stygium.net
sesku.planeacion.net
ntp0.nl.uu.net
ntp1.nl.uu.net
navobs1.oar.net
ntp-galway.hea.net

.org:

ntp1.ona.org

.de:

time.fu-berlin.de
atom.uhr.de
ntps1-0.cs.tu-berlin.de
ntps1-1.cs.tu-berlin.de
ntps1-0.uni-erlangen.de
ntps1-1.uni-erlangen.de
ntp1.fau.de
ntp2.fau.de
ntp.dianacht.de
zeit.fu-berlin.de
ptbtime1.ptb.de
ptbtime2.ptb.de
rustime01.rus.uni-stuttgart.de
rustime02.rus.uni-stuttgart.de

.nl:

chime1.surfnet.nl
ntp.vsl.nl

.at:

asynchronos.iiss.at

.cz:

ntp.nic.cz
time.ufe.cz

.pl:

ntp.fizyka.umk.pl
tempus1.gum.gov.pl
tempus2.gum.gov.pl

.ro:

ntp1.usv.ro
ntp3.usv.ro

.se:

timehost.lysator.liu.se
time1.stupi.se

.ca:

time.nrc.ca
clock.uregina.ca

.mx:

cronos.cenam.mx
ntp.lcf.mx

.es:

hora.roa.es
minuto.roa.es

.it:

ntp1.inrim.it
ntp2.inrim.it

.be:

ntp1.oma.be
ntp2.oma.be

.hu:

ntp.atomki.mta.hu

.eus:

ntp.i2t.ehu.eus

.ch:

ntp.neel.ch

.cn:

ntp.neu.edu.cn

.jp:

ntp.nict.jp

.br:

ntps1.pads.ufrj.br

.cl:

ntp.shoa.cl

.int:

time.esa.int
time1.esa.int

Sources

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