IPv6-listening NTP servers

These are Network Time Protocol (NTP) servers with IPv6 connectivity and AAAA records. This list is less relevant than it was when it was originally created in 2007 since there are NTP pools with IPv6 connectivity and IPv6 support is, in general, a lot more common now than it was then.

See HOWTO ensure your clock is accurate and showing the correct time using the Network Time Protocol to learn how you can test these servers and configure your system to use them.

TIP: The NTP pools starting with 2 point to IPv6-ready servers. 2.pool.ntp.org has servers with IPv6 connectivity while 1.pool.ntp.org and 3.pool.ntp.org do NOT. Similarly, 2.europe.pool.ntp.org supports IPv6. 1.europe.pool.ntp.org and 3.europe.pool.ntp.org do NOT support IPv6.

Stratum 1

(Very l33t servers)

• ntp.time.nl (Website: time.nl)
• ntp.rhrk.uni-kl.de
• ntp6.remco.org
• chime3.ipv6.surfnet.nl
• ntp1.ipv6.lrz-muenchen.de

Stratum 2-3

• ntp6.space.net
• ntp.ipv6.linux.ee
• noc.sixxs.net
• nlams01.sixxs.net
• nlams02.sixxs.net
• ntp1.bit.nl
• ntp2.bit.nl
• ntp.doubleukay.com
• ntp1.ipv6.teleport-iabg.de
• ntp2.ipv6.teleport-iabg.de
• ntp.rfc1149.net
• ntp.ada-france.org
• ntp.ebzao.info
• ntp.xiando.com
• time6.ipv6.uni-muenster.de
• ntp.rhrk.uni-kl.de
• chime3.ipv6.surfnet.nl