我收集的国外time server的名单，欢迎测试使用。
Active Servers
AR time.sinectis.com.ar (216.244.192.3)
AR tick.nap.com.ar (200.49.40.1)
AR tock.nap.com.ar (200.49.40.15)
AU ntp.saard.net (203.21.37.18)
BE ntp1.belbone.be (195.13.23.5)
BE ntp2.belbone.be (195.13.1.153)
BR ntp.cais.rnp.br (200.144.121.33)
BR ntp.hiway.com.br (200.246.53.5)
BR ntp.pop-pr.rnp.br (200.19.74.21)
BR ntp.ufes.br (200.137.65.132)
BR ntp1.pucpr.br (200.192.112.8)
CA ntp.cpsc.ucalgary.ca (136.159.2.1)
CA tick.utoronto.ca (128.100.103.252)
CA timelord.uregina.ca (142.3.100.15)
CZ ntp.globe.cz (81.95.96.3)
CZ ntp.karpo.cz (217.11.227.68)
CZ ntp1.contactel.cz (212.65.193.3)
CZ ntp2.contactel.cz (212.65.193.4)
DK clock.netcetera.dk (130.228.230.2)
GR ntp.mikroskosmos.com (213.5.174.2)
DK clock2.netcetera.dk (194.192.207.9)
ES slug.ctv.es [194.179.52.14]
)
FI tick.keso.fi (194.137.39.67)
FI tock.keso.fi (194.137.39.68)
FR ntp.ndsoftwarenet.com
FR ntp.obspm.fr
FR ntp.tuxfamily.net
FR ntp1.tuxfamily.net (80.67.177.2)
FR ntp2.tuxfamily.net (80.67.179.2)
FR ntp.univ-lyon1.fr (134.214.100.6)
FR ntp.via.ecp.fr (138.195.130.71)
HR zg1.ntp.carnet.hr (161.53.2.70)
HR zg2.ntp.carnet.hr (161.53.123.4)
HR st.ntp.carnet.hr (161.53.30.3)
HR ri.ntp.carnet.hr (161.53.40.3)
HR os.ntp.carnet.hr (161.53.200.8)
HU time.kfki.hu (148.6.0.1)
ID ntp.incaf.net (202.180.0.71)
IT ntps.net4u.it (80.83.192.129)
JP ntp.cyber-fleet.net
KR ntp.ewha.net [211.39.143.103]
KR time.nuri.net[203.255.112.4]
MX ntp2a.audiotel.com.mx (200.34.146.67)
MX ntp2b.audiotel.com.mx (200.34.146.68)
MX ntp2c.audiotel.com.mx (200.34.146.69)
MY ntp.doubleukay.com
NG ntp.supernet300.com (216.72.109.4)
NL ntp1.theinternetone.net (62.4.94.221)
NL ntp2.theinternetone.net (62.4.94.8)
NL ntp3.theinternetone.net (62.4.94.210)
NO fartein.ifi.uio.no (129.240.64.3)
NZ ntp.iprolink.co.nz (use DNS)
NZ ntp.massey.ac.nz (130.123.128.253)
NZ ntp.public.otago.ac.nz (139.80.64.114)
NZ tk1.ihug.co.nz, tk2.ihug.co.nz, tk3.ihug.co.nz (use DNS)
PL info.cyf-kr.edu.pl: 149.156.4.11
PT bug.fe.up.pt (193.136.54.1)
RO ntp.ip.ro (212.93.129.107)
RU ntp.psn.ru (194.149.67.130)
RU sign.chg.ru (193.233.46.10)
SE ntp.lth.se (130.235.20.3)
SG ntp.shim.org
SI biofiz.mf.uni-lj.si (193.2.69.10)
SI ntp1.arnes.si (193.2.1.66)
SI ntp2.arnes.si (193.2.1.92)
SI time.ijs.si (193.2.4.6)
SV clock.cimat.ues.edu.sv (168.243.7.66)
UA ntp.terabyte.com.ua (195.66.196.173)
UK bear.zoo.bt.co.uk (132.146.236.132)
UK ntp.cis.strath.ac.uk
UK ntp.exnet.com (194.207.34.9)
UK ntp2a.mcc.ac.uk (130.88.202.49)
UK ntp2b.mcc.ac.uk (130.88.200.98)
UK ntp2c.mcc.ac.uk (130.88.200.4)
UK ntp2d.mcc.ac.uk (130.88.203.12)
UK ntp{0|1|2}.sandvika.net (194.164.127.{4|5|6})
UK ntp0.uk.uu.net 158.43.128.33
UK ntp1.uk.uu.net 158.43.128.66
UK ntp2.uk.uu.net 158.43.192.66
UK tick.tanac.net (195.112.34.51)
UK time-server.ndo.com (195.7.224.135)
US AR sushi.compsci.lyon.edu (150.208.72.154)
US AZ decimal.lib.ci.phoenix.az.us (148.167.132.201)
US AZ dewey.lib.ci.phoenix.az.us (148.167.132.200)
US AZ ntp.drydog.com (207.211.160.111)
US CA clock.fmt.he.net (216.218.192.202)
US CA clock.sjc.he.net (216.218.254.202)
US CA ntp.ucsd.edu (132.239.254.49)
US CA ntp1.mainecoon.com (63.192.96.2)
US CA ntp2.mainecoon.com (63.192.96.3)
US CA ntp1.sf-bay.org (207.126.97.57)
US CA ntp2.sf-bay.org (204.74.68.55)
US CA reloj.kjsl.com (204.87.183.6)
US CA time.berkeley.netdot.net (216.27.190.202)
US CA time.five-ten-sg.com (205.147.40.34)
US CO ntp1.tummy.com
US DE louie.udel.edu (128.4.40.12)
US GA ntp.shorty.com (208.21.108.186)
US GA rolex.usg.edu
US GA timex.usg.edu
US IL chrivh40.cch.com (198.147.37.140)
US IL ntp-0.cso.uiuc.edu (130.126.24.53)
US IL ntp-1.cso.uiuc.edu (130.126.24.24)
US IL ntp-1.mcs.anl.gov (140.221.9.20)
US IL ntp-2.cso.uiuc.edu (130.126.24.44)
US IL ntp-2.mcs.anl.gov (140.221.9.6)
US IN gilbreth.ecn.purdue.edu (128.46.129.93, 128.46.141.93, 128.46.147.93, 128.46.148.93, 128.46.171.93)
US IN harbor.ecn.purdue.edu (128.46.128.76, 128.46.129.76, 128.46.154.76)
US IN horologe.cerias.purdue.edu(128.10.252.1)
US IN tick.cerias.purdue.edu(128.10.252.9), tock.cerias.purdue.edu(128.10.252.10)
US KS ntp1.kansas.net (199.240.130.1)
US KS ntp2.kansas.net (199.240.130.12)
US MA ntp.ourconcord.net (216.204.156.2)
US MN ns.nts.umn.edu (128.101.101.101)
US MN nss.nts.umn.edu (134.84.84.84)
US MO time-ext.missouri.edu (NO IP LISTED)
US MT chronos1.umt.edu (192.73.48.1)
US MT chronos2.umt.edu (192.73.48.2)
US MT chronos3.umt.edu (192.73.48.6)
US NC clock1.unc.edu (152.2.21.1)
US NJ tick.jrc.us (65.211.109.1)
US NJ tock.jrc.us (65.211.109.11)
US NV cuckoo.nevada.edu (131.216.1.101)
US NV tick.cs.unlv.edu (131.216.22.15)
US NV tock.cs.unlv.edu (131.216.22.17)
US NY clock.linuxshell.net (64.243.118.2)
US NY clock.nyc.he.net (209.51.161.238)
US NY ntp0.cornell.edu
US NY sundial.columbia.edu (128.59.59.177)
US NY timex.cs.columbia.edu (128.59.16.20)
US PA clock-1.cs.cmu.edu (128.2.250.95)
US PA clock-2.cs.cmu.edu (128.2.222.8)
US PA clock.psu.edu (128.118.25.3)
US PA fuzz.psc.edu (128.182.58.100)
US PA ntp-1.ece.cmu.edu (no address, please use DNS)
US PA ntp-2.ece.cmu.edu (no address, please use DNS)
US TX ntp.cox.smu.edu (129.119.80.126)
US TX ntp.fnbhs.com (209.144.20.76)
US TX ntp.tmc.edu (128.249.1.10)
US TX ntppub.tamu.edu (no address available)
US TX tick.greyware.com (207.55.146.19)
US TX tock.greyware.com (207.55.146.54)
US VA ntp-1.vt.edu (198.82.162.213)
US VA ntp-2.vt.edu (198.82.161.227)
US VA ntp.cmr.gov (140.162.8.3)
US VT ntp0.state.vt.us (159.105.23.194)
US VT ntp1.state.vt.us (159.105.23.130)
US VT ntp2.state.vt.us (170.222.64.130)
US WI ntp1.cs.wisc.edu (128.105.39.11)
US WI ntp3.cs.wisc.edu (128.105.37.11)
US WI ntp3.sf-bay.org (207.126.97.57)
VE ntp.linux.org.ve (150.188.8.196)
ZA ntp.cs.unp.ac.za (143.128.82.200)
ZA tock.nml.csir.co.za (146.64.241.229)
AU ntp.ise.canberra.edu.au (137.92.140.80)
AU ntp0.cs.mu.OZ.AU (128.250.36.2)
AU ntp1.cs.mu.OZ.AU (128.250.36.3)
BR ntp1.rnp.br (200.19.119.69)
CA clock.uregina.ca (142.3.100.2)
CA subitaneous.cpsc.ucalgary.ca (136.159.2.254)
CA tick.usask.ca (128.233.3.100)
CA tock.usask.ca (128.233.3.101)
CH ntp.metas.ch (193.5.216.14)
CH swisstime.ethz.ch (129.132.2.21)
CL ntp.dgf.uchile.cl (146.83.8.200)
CL ntp.shoa.cl (200.68.60.246)
CZ ntp.cesnet.cz (195.113.144.201)
DE ntp0.fau.de (131.188.3.220)
DE ntp1.fau.de (131.188.3.221)
DE ntp2.fau.de (131.188.3.222)
DE ntp3.fau.de (131.188.3.223)
DE ntps1-0.cs.tu-berlin.de (130.149.17.21)
DE ntps1-1.cs.tu-berlin.de (130.149.17.8)
DE ptbtime1.ptb.de (192.53.103.103)
DE ptbtime2.ptb.de (192.53.103.104)
DE rustime01.rus.uni-stuttgart.de (129.69.1.153)
DK Denmark GPS.FreeBSD.dk (212.242.86.186)
DK Denmark GPS.dix.dk (192.38.7.240)
FR canon.inria.fr (192.93.2.20)
FR chronos.cru.fr
FR ntp-p1.obspm.fr
FR ntp-sop.inria.fr (138.96.64.10)
FR ntp1.curie.fr
FR ntp2.curie.fr
FR ntp3.curie.fr
IT ntp1.ien.it (193.204.114.232)
IT ntp2.ien.it (193.204.114.233)
IT tempo.cstv.to.cnr.it (150.145.33.1)
JP clock.nc.fukuoka-u.ac.jp (133.100.9.2)
JP clock.tl.fukuoka-u.ac.jp (133.100.11.8)
MX cronos.cenam.mx
NL ntp0.nl.net (193.67.79.202)
NL ntp1.nl.net (193.79.237.14)
NL ntp2.nl.net (193.79.237.30)
NO time.service.uit.no
NZ clock1.canterbury.ac.nz (132.181.12.13)
PL ntp.certum.pl (217.153.69.35)
PL vega.cbk.poznan.pl (150.254.183.15)
SE ntp1.gbg.netnod.se (192.36.133.130)
SE ntp2.gbg.netnod.se (192.36.133.66)
SE ntp1.mmo.netnod.se (192.36.134.17)
SE ntp2.mmo.netnod.se (192.36.134.25)
SE ntp1.sp.se (62.119.40.98)
SE ntp2.sp.se (62.119.40.99)
SE ntp1.sth.netnod.se (192.36.144.22)
SE ntp2.sth.netnod.se (192.36.144.23)
SE time1.stupi.se (192.36.143.150)
SE time2.stupi.se (192.36.143.151)
SG jamtepat.singnet.com.sg (165.21.110.7)
SI goodtime.ijs.si (193.2.4.2)
UK chronos.csr.net 194.35.252.7 (CNAME ntp.csr.net)
UK ntp2.ja.net (193.63.94.26)
US AK ntp.alaska.edu (199.165.76.11) (CNAME ntp-ua.usno.navy.mil)
US CA clepsydra.dec.com (204.123.2.5)
Location: HP Western Research Laboratory, Palo Alto, CA
US CA clock.isc.org (192.5.5.250)
US CA clock.sgi.com (192.48.153.74)
US CA clock.via.net (209.81.9.7)
US CA gpstime.trimble.com 206.40.88.30
US CA montpelier.ilan.caltech.edu (131.215.254.2) CNAMES: montpelier.caltech.edu, ntp-caltech.usno.navy.mil
US CA nist1.aol-ca.truetime.com (207.200.81.113)
US CA nist1.datum.com (66.243.43.21)
US CA nist1-sj.glassey.com (207.126.98.204)
US CA ntp-cup.external.hp.com (192.6.38.127)
US CA ntp.nasa.gov (198.123.30.132)
US CA tick.gpsclock.com (206.203.0.15)
US CA tick.ucla.edu (164.67.62.194) CNAMEs: navobs1.ucla.edu, time.ucla.edu
US CA timekeeper.isi.edu (128.9.176.30)
US CA tock.gpsclock.com (206.223.0.14)
US CA usno.pa-x.dec.com (204.123.2.72) CNAME: navobs1.pa-x.dec.com
US CO navobs1.usnogps.navy.mil (204.34.198.40) CNAME: tick.usnogps.navy.mil
US CO navobs2.usnogps.navy.mil (204.34.198.41) CNAME: tock.usnogps.navy.mil
US CO time-a.nist.gov (129.6.15.28) New Access policy: Open only to existing users; other users please use time-b or time-c instead.
US CO time-a.timefreq.bldrdoc.gov (132.163.135.130, 132.163.4.101)
Location: NIST Boulder Laboratories, Boulder, Colorado
US CO time-b.timefreq.bldrdoc.gov (132.163.135.131, 132.163.4.102)
US CO time-c.timefreq.bldrdoc.gov (132.163.135.132, 132.163.4.103)
US CO time-d.timefreq.bldrdoc.gov (132.163.135.133, 132.163.4.104)
US CO time.nist.gov (192.43.244.18)
US CO utcnist.colorado.edu (128.138.140.44)
US DC ntp2.usno.navy.mil (192.5.41.209)
US DC tick.usno.navy.mil (192.5.41.40)
US DC tock.usno.navy.mil (192.5.41.41)
US DE mizbeaver.udel.edu (128.4.1.2)
US DE ntp1.connectiv.com (138.39.7.20)
US DE ntp1.nss.udel.edu (128.175.60.175)
US DE rackety.udel.edu (128.4.1.1)
US FL ntp-s1.cise.ufl.edu (128.227.205.3) (CNAME ntp-ufl.usno.navy.mil)
US GA navobs1.gatech.edu (130.207.244.240) CNAMES: tick.gatech.edu, ntp-gatech.usno.navy.mi
US GA time.twc.weather.com (216.133.140.77)
US HI tick.mhpcc.edu (164.122.7.123) (CNAME: ntp-mhpcc.usno.navy.mil)
US IL ntp0.mcs.anl.gov (140.221.8.88) (CNAME ntp-anl.usno.navy.mil)
US IL truechimer.cso.uiuc.edu (128.174.5.58)
US IN tick.cerias.purdue.edu(128.10.252.7) (alias darkcity.cerias.purdue.edu)
US IN tock.cerias.purdue.edu(128.10.252.6) (alias caspak.cerias.purdue.edu)
US MA bonehed.lcs.mit.edu (18.26.4.105)
US MA ntp.quidnet.com (140.239.15.7)
US MA tick.mit.edu (18.145.0.30) CNAME: navobs1.mit.edu
US MA timeserver.cs.umb.edu (158.121.104.4)
US MD time-b.nist.gov (129.6.15.29)
US MD umd1.umd.edu (128.8.10.1)
US ME ntp.colby.edu (137.146.210.250) (CNAME ntp-colby.usno.navy.mil)
US MO navobs1.wustl.edu (128.252.19.1) CNAME: tick.wustl.edu
US NC ncnoc.ncren.net (192.101.21.1)
US NC terrapin.csc.ncsu.edu 152.1.58.124
US NJ ntp0.jensenresearch.com (65.211.109.12)
US NY nist1-ny.glassey.com (208.184.49.9)
US OH lerc-dns.lerc.nasa.gov (128.156.1.43)
US OK now.okstate.edu (139.78.100.163) CNAME: ntp-okstate.usno.navy.mil
US PA gps1.otc.psu.edu (128.118.25.12)
US PA otc1.psu.edu (128.118.46.3)
US PA wwv.otc.psu.edu (128.118.46.3)
US TX tick.uh.edu (129.7.1.66) CNAME: time.uh.edu
US UT time.xmission.com (198.60.22.240)
US VA: nist1.aol-va.truetime.com (205.188.185.33)
US VA nist1-dc.glassey.com (216.200.93.8)
US WA bigben.cac.washington.edu 140.142.16.34 (CNAME ntp-wu.usno.navy.mil)
US WA time-nw.nist.gov (131.107.1.10)
US WI ben.cs.wisc.edu (128.105.201.11)
Discontinued Service
bitsy.mit.edu
chronos.univ-rennes1.fr
clock.cmc.ec.gc.ca
clock.llnl.gov
clock.osf.org
fuzzy.nta.no
ntp.cc.utexas.edu
ntp.marine.csiro.au
ntp.mel.nml.csiro.au
ntp.nml.csiro.au
ntp.per.nml.csiro.au
ntp.quidnet.com
ntp.syd.dms.csiro.au
ntp.tip.csiro.au
ntp.cs.mu.OZ.AU
ntpa2.kph.uni-mainz.de
ntps1-1.rz.Uni-Osnabrueck.DE
ntp0.sdd.hp.com
ntp0.ja.net
ntp1.sony.com
ntps1-0.uni-erlangen.de
ntps1-1.uni-erlangen.de
ntps1-2.uni-erlangen.de
time.ien.it
utcnist1.reston.mci.net
wave.mbari.org
wwvb.erg.sri.com
wwvb.isi.edu
wwwa2.kph.uni-mainz.de
y2k-test.timefreq.bldrdoc.gov
allison.radiks.net
bernina.ethz.ch
black-ice.cc.vt.edu
calvus.rzs-hm.si
chime.utoronto.ca
chime1.surfnet.nl
churchy.udel.edu
clock.tricity.wsu.edu
constellation.ecn.uoknor.edu
delphi.cs.ucla.edu
dominator.eecs.harvard.edu
eagle.tamu.edu
finch.cc.ukans.edu
fuzz.sura.net
gazette.bcm.tmc.edu
hmljhp.rzs-hm.si
kuhub.cc.ukans.edu
lassen.slc.ca.gov
libra.rice.edu
ntp.adelaide.edu.au
ntp.botbay.net
ntp.ctr.columbia.edu
ntp.landau.ac.ru
ntp.olivetti.com
ntp.pop-df.rnp.br
ntp.to.themasses.org
ntp.waikato.ac.nz
ntp1.mpis.net
ntp2.mpis.net
ntp1.ossi.com
ntp1.sura.net
ntp2.ossi.com
ntp2.sura.net
salmon.maths.tcd.ie
smart1.svi.org
tick.anice.net.ar
tick.koalas.com
ticktock.wang.com
time.deakin.edu.au
time.esec.com.au
time.software.net
tmc.edu
tock.anice.net.ar
truechimer.waikato.ac.nz
vtserf.cc.vt.edu
wuarchive.wustl.edu
www1.cmc.ec.gc.ca
www2.cmc.ec.gc.ca
xfiles-jr.esa.lanl.gov
xfiles.esa.lanl.gov
1 s1a.time.edu.cn 北京邮电大学
1 s1c.time.edu.cn 北京大学
1 s1d.time.edu.cn 东南大学
2 s2a.time.edu.cn 清华大学
2 s2b.time.edu.cn 清华大学
2 s2c.time.edu.cn 北京邮电大学
2 s2d.time.edu.cn 西南地区网络中心
2 s2e.time.edu.cn 西北地区网络中心
2 s2f.time.edu.cn 东北地区网络中心
2 s2g.time.edu.cn 华东南地区网络中心
2 s2h.time.edu.cn 四川大学网络管理中心
2 s2i.time.edu.cn 广东省教育信息中心
2 s2j.time.edu.cn 大连理工大学网络中心
2 s2k.time.edu.cn CERNET桂林主节点
2 s2l.time.edu.cn 北京大学
2 s2m.time.edu.cn 北京大学
3 s3a.time.edu.cn 华东南地区网络中心
3 s3b.time.edu.cn
3 s3c.time.edu.cn
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