chrony.conf

#
# NTP servers in chrony format
#

# Google NTP
server time.google.com iburst
server time1.google.com iburst
server time2.google.com iburst
server time3.google.com iburst
server time4.google.com iburst
server time.android.com iburst

# Amazon NTP
server time.aws.com iburst
server amazon.pool.ntp.org iburst
server 0.amazon.pool.ntp.org iburst
server 1.amazon.pool.ntp.org iburst
server 2.amazon.pool.ntp.org iburst
server 3.amazon.pool.ntp.org iburst

# Cloudflare NTP
server time.cloudflare.com iburst

# Facebook NTP
server time.facebook.com iburst
server time1.facebook.com iburst
server time2.facebook.com iburst
server time3.facebook.com iburst
server time4.facebook.com iburst
server time5.facebook.com iburst

# Microsoft NTP
server time.windows.com iburst

# Apple NTP
server time.apple.com iburst
server time-macos.apple.com iburst
server time-ios.apple.com iburst
server time1.apple.com iburst
server time2.apple.com iburst
server time3.apple.com iburst
server time4.apple.com iburst
server time5.apple.com iburst
server time6.apple.com iburst
server time7.apple.com iburst
server time.euro.apple.com iburst
server time.asia.apple.com iburst

# DEC/Compaq/HP
server clepsydra.dec.com iburst
server clepsydra.labs.hp.com iburst
server clepsydra.hpl.hp.com iburst
server usno.labs.hp.com iburst

# NTP SERVERS
server ntp0.ntp-servers.net iburst
server ntp1.ntp-servers.net iburst
server ntp2.ntp-servers.net iburst
server ntp3.ntp-servers.net iburst
server ntp4.ntp-servers.net iburst
server ntp5.ntp-servers.net iburst
server ntp6.ntp-servers.net iburst
server ntp7.ntp-servers.net iburst

# stratum1.net
server stratum1.net iburst

# ACO.net
server ts1.aco.net iburst
server ts2.aco.net iburst

# Trabia-Network
server time-a.as43289.net iburst
server time-b.as43289.net iburst
server time-c.as43289.net iburst

# RIPE
server ntp.ripe.net iburst

# ISC
server clock.isc.org iburst

# KSZ
server ntp0.as34288.net iburst
server ntp1.as34288.net iburst

# Nat Morris
server ntp.nat.ms iburst

# ISI
server timekeeper.isi.edu iburst

# NetBone Digital
server ntpstm.netbone-digital.com iburst

# Microchip
server nist1.symmetricom.com iburst

# Quintex
server ntp.quintex.com iburst

# Conectiv
server ntp1.conectiv.com iburst

# USSHC
server tock.usshc.com iburst

# timegps.net
server t2.timegps.net iburst

# Layer42
server gps.layer42.net iburst

# Stygium
server ntp-ca.stygium.net iburst

# planeacion.net
server sesku.planeacion.net iburst

# KPN
server ntp0.nl.uu.net iburst
server ntp1.nl.uu.net iburst

# oar.net
server navobs1.oar.net iburst

# HEAnet
server ntp-galway.hea.net iburst

# ona.org
server ntp1.ona.org iburst

# your.org
server ntp.your.org iburst

# mrow.org
server ntp.mrow.org iburst

# Ubuntu
server ntp.ubuntu.com iburst

# Qualcomm
server time.xtracloud.net iburst

# Austria
server asynchronos.iiss.at iburst

# Basque Country
server ntp.i2t.ehu.eus iburst

# Belgium
server ntp.heppen.be iburst
server ntp1.oma.be iburst
server ntp2.oma.be iburst
server ntp.teambelgium.net iburst

# Brazil
server ntps1.pads.ufrj.br iburst

# Canada
server time1.mbix.ca iburst
server time2.mbix.ca iburst
server time3.mbix.ca iburst
server time.nrc.ca iburst
server ntp.qix.ca iburst
server ntp1.qix.ca iburst
server ntp2.qix.ca iburst
server clock.uregina.ca iburst
server tick.usask.ca iburst
server tock.usask.ca iburst
server ntp.yycix.ca iburst

# Chile
server ntp.shoa.cl iburst

# China
server ntp.ntsc.ac.cn iburst
server ntp.neu.edu.cn iburst

# Croatia
server time1.ntp.hr iburst
server time2.ntp.hr iburst
server os.ntp.carnet.hr iburst
server ri.ntp.carnet.hr iburst
server st.ntp.carnet.hr iburst
server zg1.ntp.carnet.hr iburst
server zg2.ntp.carnet.hr iburst

# Czech Republic
server ntp.nic.cz iburst
server time.ufe.cz iburst

# France
server ntp.viarouge.net iburst

# Germany
server ntp.dianacht.de iburst
server time.fu-berlin.de iburst
server zeit.fu-berlin.de iburst
server ntp1.hetzner.de iburst
server ntp2.hetzner.de iburst
server ntp3.hetzner.de iburst
server ptbtime1.ptb.de iburst
server ptbtime2.ptb.de iburst
server ntps1-0.cs.tu-berlin.de iburst
server ntps1-1.cs.tu-berlin.de iburst
server ntps1-0.uni-erlangen.de iburst
server ntps1-1.uni-erlangen.de iburst
server ntp1.fau.de iburst
server ntp2.fau.de iburst
server rustime01.rus.uni-stuttgart.de iburst
server rustime02.rus.uni-stuttgart.de iburst

# Hong Kong
server stdtime.gov.hk iburst

# Hungary
server ntp.atomki.mta.hu iburst

# India
server time.nplindia.org iburst
server time.nplindia.in iburst
server samay1.nic.in iburst
server samay2.nic.in iburst
server ntp.iitb.ac.in iburst

# International
server time.esa.int iburst
server time1.esa.int iburst

# Iran
server ntp.day.ir iburst

# Italy
server ntp1.inrim.it iburst
server ntp2.inrim.it iburst

# Japan
server ntp1.jst.mfeed.ad.jp iburst
server ntp2.jst.mfeed.ad.jp iburst
server ntp3.jst.mfeed.ad.jp iburst
server ntp.nict.jp iburst
server x.ns.gin.ntt.net iburst
server y.ns.gin.ntt.net iburst

# Mexico
server cronos.cenam.mx iburst
server ntp.lcf.mx iburst

# Netherlands
server ntp.time.nl iburst
server ntppool1.time.nl iburst
server ntppool2.time.nl iburst
server chime1.surfnet.nl iburst
server ntp.vsl.nl iburst

# Poland
server tempus1.gum.gov.pl iburst
server tempus2.gum.gov.pl iburst
server ntp.fizyka.umk.pl iburst

# Romania
server ntp1.usv.ro iburst
server ntp3.usv.ro iburst

# Russia
server ntp.ru iburst
server ntp.psn.ru iburst
server ntp.mobatime.ru iburst
server ntp.ix.ru iburst
server ntp.nsu.ru iburst
server ntp.rsu.edu.ru iburst
server ntp1.stratum1.ru iburst
server ntp2.stratum1.ru iburst
server ntp3.stratum1.ru iburst
server ntp4.stratum1.ru iburst
server ntp5.stratum1.ru iburst
server ntp1.stratum2.ru iburst
server ntp2.stratum2.ru iburst
server ntp3.stratum2.ru iburst
server ntp4.stratum2.ru iburst
server ntp5.stratum2.ru iburst
server ntp.fiord.ru iburst
server ntp1.vniiftri.ru iburst
server ntp2.vniiftri.ru iburst
server ntp3.vniiftri.ru iburst
server ntp4.vniiftri.ru iburst
server ntp.sstf.nsk.ru iburst
server ntp1.niiftri.irkutsk.ru iburst
server ntp2.niiftri.irkutsk.ru iburst
server vniiftri.khv.ru iburst
server vniiftri2.khv.ru iburst
server ntp21.vniiftri.ru iburst

# Spain
server hora.roa.es iburst
server minuto.roa.es iburst
server tick.espanix.net iburst
server tock.espanix.net iburst

# Sweden
server timehost.lysator.liu.se iburst
server gbg1.ntp.se iburst
server gbg2.ntp.se iburst
server mmo1.ntp.se iburst
server mmo2.ntp.se iburst
server sth1.ntp.se iburst
server sth2.ntp.se iburst
server svl1.ntp.se iburst
server svl2.ntp.se iburst
server ntp.se iburst
server time1.stupi.se iburst

# Switzerland
server ntp.neel.ch iburst

# UK
server eshail.batc.org.uk iburst
server ntp5.leontp.com iburst
server ntp6.leontp.com iburst
server ntp7.leontp.com iburst
server ntp8.leontp.com iburst
server ntp9.leontp.com iburst
server ntp1.dmz.terryburton.co.uk iburst
server ntp2.dmz.terryburton.co.uk iburst
server ntp.theitman.uk iburst
server timekeeper.webwiz.net iburst

# Ukraine
server ntp.time.in.ua iburst
server ntp2.time.in.ua iburst
server ntp3.time.in.ua iburst

# US
server ntp.colby.edu iburst
server gnomon.cc.columbia.edu iburst
server navobs1.gatech.edu iburst
server ntp.gsu.edu iburst
server clock.sjc.he.net iburst
server clock.fmt.he.net iburst
server clock.nyc.he.net iburst
server bonehed.lcs.mit.edu iburst
server time.nist.gov iburst
server time-a-g.nist.gov iburst
server time-b-g.nist.gov iburst
server time-c-g.nist.gov iburst
server time-d-g.nist.gov iburst
server time-e-g.nist.gov iburst
server time-a-wwv.nist.gov iburst
server time-b-wwv.nist.gov iburst
server time-c-wwv.nist.gov iburst
server time-d-wwv.nist.gov iburst
server time-e-wwv.nist.gov iburst
server time-a-b.nist.gov iburst
server time-b-b.nist.gov iburst
server time-c-b.nist.gov iburst
server time-d-b.nist.gov iburst
server time-e-b.nist.gov iburst
server time-nw.nist.gov iburst
server time-a.nist.gov iburst
server time-b.nist.gov iburst
server utcnist.colorado.edu iburst
server utcnist2.colorado.edu iburst
server utcnist3.colorado.edu iburst
server now.okstate.edu iburst
server otc1.psu.edu iburst
server ntp1.net.berkeley.edu iburst
server ntp2.net.berkeley.edu iburst
server tick.ucla.edu iburst
server rackety.udel.edu iburst
server mizbeaver.udel.edu iburst
server ntp-s1.cise.ufl.edu iburst
server tick.uh.edu iburst
server level1e.cs.unc.edu iburst
server tick.usno.navy.mil iburst
server tock.usno.navy.mil iburst
server ntp2.usno.navy.mil iburst
server navobs1.wustl.edu iburst
server ntp1.wiktel.com iburst
server ntp2.wiktel.com iburst