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Welcome to PublicNTP

PublicNTP provides unrestricted access to no-cost, highly-accurate time sources for the public good.

World

Servers

Johannesburg

Continent: Africa

Country: South Africa

Live Date:

2019-05-14

Hostname (IPv6):

stratum2-01.jnb01.publicntp.org

Software:

NTPsec

Seoul

Continent: Asia

Country: South Korea

Live Date:

2018-05-06

Hostname (IPv6):

stratum2-01.icn01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Miami, Florida

Continent: North America

Country: United States

Live Date:

2016-07-30

Hostname:

stratum2-01.mia01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Dallas / Ft. Worth

Continent: North America

Country: United States

Live Date:

2016-07-30

Hostname:

stratum2-01.dfw01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Santiago

Continent: South America

Country: Chile

Live Date:

2016-07-30

Hostname:

stratum2-01.scl01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Hong Kong

Continent: Asia

Country: Hong Kong

Live Date:

2016-07-30

Hostname:

stratum2-01.hkg01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Bogota

Continent: South America

Country: Colombia

Live Date:

2017-11-01
2018-02-15

Hostname:

stratum2-01.bog01.publicntp.org
stratum2-01.bog02.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Tokyo

Continent: Asia

Country: Japan

Live Date:

2017-11-07

Hostname:

stratum2-01.hnd01.publicntp.org
stratum2-01.hnd02.publicntp.org
stratum2-02.hnd02.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

San Francisco, California

Continent: North America

Country: United States

Live Date:

2016-07-31

Hostname:

stratum2-01.sfo01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Salt Lake City, Utah

Continent: North America

Country: United States

Live Date:

2016-12-30

Hostname:

stratum1.slc01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Chicago, Illinois

Continent: North America

Country: United States

Live Date:

2008-02-13

Hostname:

stratum2.ord2.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Ashburn, Virginia

Continent: North America

Country: United States

Live Date:

2016-07-30

Hostname:

stratum2.iad01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Montreal, Québec

Continent: North America

Country: Canada

Live Date:

2016-12-20

Hostname:

stratum2.yul01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

São Paulo

Continent: South America

Country: Brazil

Live Date:

2016-08-03
2016-12-28
2018-02-10

Hostname:

stratum2.gru01.publicntp.org
stratum2-01.gru02.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Sao Paulo

Continent: South America

Country: Brazil

Live Date:

2018-02-15

Hostname:

stratum2-01.gru02.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Dublin

Continent: Europe

Country: Ireland

Live Date:

2016-07-31

Hostname:

stratum2.dub01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Frankfurt

Continent: Europe

Country: Germany

Live Date:

2016-07-31

Hostname:

stratum2.fra01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Mumbai

Continent: Asia

Country: India

Live Date:

2016-08-01

Hostname:

stratum2.bom01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Bangalore

Continent: Asia

Country: India

Live Date:

2017-01-09

Hostname (IPv6):

stratum2-01.blr01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Singapore

Continent: Asia

Country: Singapore

Live Date:

2016-08-03
2017-02-26

Hostname:

stratum2.sin01.publicntp.org
stratum2-01.sin02.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Sydney

Continent: Oceania

Country: Australia

Live Date:

2016-07-31

Hostname:

stratum2-01.syd01.publicntp.org
stratum2-01.syd02.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

Buenos Aires

Continent: South America

Country: Argentina

Live Date:

2018-02-15

Hostname:

stratum2-01.eze01.publicntp.org

Software:

NTP Reference Implementation,
Network Time Foundation

PublicNTP Experience

Global NTP Server Monitoring
Black and White wall of clocks Black and white monitor with charts Close up of black cameras Metronome

PublicNTP has consistently grown its global deployment footprint since the day the company formed. While that’s excellent news for us, it comes with a number of unforeseen issues as a matter of scale. With 30+ servers across the globe, it’s not enough to just make sure the server and operating system are both up and running.

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