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List of Top Public Time Servers
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Public_NTP_Servers.md

A Collection of Public NTP Servers

Table of Contents

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
time1.apple.com
time2.apple.com
time3.apple.com
time4.apple.com
time5.apple.com
time6.apple.com
time7.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

VNIIFTRI

Stratum 1

ntp1.vniiftri.ru
ntp2.vniiftri.ru
ntp3.vniiftri.r
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

time.in.ua

Stratum 1

ntp.time.in.ua
ntp2.time.in.ua

Stratum 2

ntp3.time.in.ua

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

NTT [AS2914]

x.ns.gin.ntt.net
y.ns.gin.ntt.net

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

QiX NTP [AS14086]

ntp.qix.ca
ntp1.qix.ca
ntp2.qix.ca

YYCIX NTP [AS396515]

ntp.yycix.ca

MSK-IX NTP [AS43832]

Stratum 1

ntp.ix.ru

Hetzner Online [AS24940]

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

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

previously 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

Chinese Academy of Sciences Nation Time Service Center [AS4808, AS9808, AS23724]

ntp.ntsc.ac.cn

Nat Morris [AS30746]

Stratum 1

ntp.nat.ms

NTP Pools

pool.ntp.org
0.pool.ntp.org
1.pool.ntp.org
2.pool.ntp.org
3.pool.ntp.org

europe.pool.ntp.org
0.europe.pool.ntp.org
1.europe.pool.ntp.org
2.europe.pool.ntp.org
3.europe.pool.ntp.org

asia.pool.ntp.org
0.asia.pool.ntp.org
1.asia.pool.ntp.org
2.asia.pool.ntp.org
3.asia.pool.ntp.org

ru.pool.ntp.org
0.ru.pool.ntp.org
1.ru.pool.ntp.org
2.ru.pool.ntp.org
3.ru.pool.ntp.org

0.gentoo.pool.ntp.org
1.gentoo.pool.ntp.org
2.gentoo.pool.ntp.org
3.gentoo.pool.ntp.org

0.arch.pool.ntp.org
1.arch.pool.ntp.org
2.arch.pool.ntp.org
3.arch.pool.ntp.org

0.fedora.pool.ntp.org
1.fedora.pool.ntp.org
2.fedora.pool.ntp.org
3.fedora.pool.ntp.org

0.opensuse.pool.ntp.org
1.opensuse.pool.ntp.org
2.opensuse.pool.ntp.org
3.opensuse.pool.ntp.org

0.centos.pool.ntp.org
1.centos.pool.ntp.org
2.centos.pool.ntp.org
3.centos.pool.ntp.org

0.debian.pool.ntp.org
1.debian.pool.ntp.org
2.debian.pool.ntp.org
3.debian.pool.ntp.org

0.askozia.pool.ntp.org
1.askozia.pool.ntp.org
2.askozia.pool.ntp.org
3.askozia.pool.ntp.org

0.freebsd.pool.ntp.org
1.freebsd.pool.ntp.org
2.freebsd.pool.ntp.org
3.freebsd.pool.ntp.org

0.netbsd.pool.ntp.org
1.netbsd.pool.ntp.org
2.netbsd.pool.ntp.org
3.netbsd.pool.ntp.org

0.openbsd.pool.ntp.org
1.openbsd.pool.ntp.org
2.openbsd.pool.ntp.org
3.openbsd.pool.ntp.org

0.dragonfly.pool.ntp.org
1.dragonfly.pool.ntp.org
2.dragonfly.pool.ntp.org
3.dragonfly.pool.ntp.org

0.pfsense.pool.ntp.org
1.pfsense.pool.ntp.org
2.pfsense.pool.ntp.org
3.pfsense.pool.ntp.org

0.opnsense.pool.ntp.org
1.opnsense.pool.ntp.org
2.opnsense.pool.ntp.org
3.opnsense.pool.ntp.org

0.smartos.pool.ntp.org
1.smartos.pool.ntp.org
2.smartos.pool.ntp.org
3.smartos.pool.ntp.org

0.android.pool.ntp.org
1.android.pool.ntp.org
2.android.pool.ntp.org
3.android.pool.ntp.org

0.amazon.pool.ntp.org
1.amazon.pool.ntp.org
2.amazon.pool.ntp.org
3.amazon.pool.ntp.org

Other NTP Servers

.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
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

http://support.ntp.org/bin/view/Servers/StratumOneTimeServers
http://support.ntp.org/bin/view/Servers/StratumTwoTimeServers
http://support.ntp.org/bin/view/Servers/NTPPoolServers
http://www.pool.ntp.org/zone/@
http://www.pool.ntp.org/zone/asia
http://www.pool.ntp.org/zone/europe
http://www.pool.ntp.org/zone/north-america
http://www.pool.ntp.org/zone/oceania
http://www.pool.ntp.org/zone/south-america
https://time.nl/
https://time.nl/index_en.html
http://time.in.ua/
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