Network Time Protocol

The Network Time Protocol is used to synchronize the time of a computer to a reference time source, such as a satellite receiver, atomic clock or another computer. It provides client accuracies typically within a millisecond on LANs and up to a few tens of milliseconds on WANs relative to a primary server synchronized to Coordinated Universal Time (UTC).

York's NTP service utilizes multiple redundant servers and diverse network paths to achieve high accuracy and reliability.

NTP Servers

Internal NTP servers
Serving all of the York Community, excluding the Keele Campus Residence Community.

Keele campus NTP Servers:

- ntp11.ipns.yorku.ca
- ntp21.ipns.yorku.ca

Glendon Campus NTP Servers:
(including Glendon Residence)

- ntp31.ipns.yorku.ca
- ntp21.ipns.yorku.ca

Public NTP Servers
Serving serve clients in ResNet, AirYork, YorkNet and Resair.

Keele Campus Residence NTP Servers

- ntppub11.ipns.yorku.ca
- ntppub21.ipns.yorku.ca

Whenever possible, hostnames should be used to configure NTP clients. IP addresses can be subject to change without notice.