A complete fix is more than you've submitted so far. It should use the user's time zone to set the proper sub-pool, e.g.:
0.north-america.pool.ntp.org 1.north-america.pool.ntp.org 2.north-america.pool.ntp.org 3.north-america.pool.ntp.org
Normally you set 3 or 4 servers, so no one bad server can result in incorrect time.
The current ubuntu ntp server could then be recycled to become part of a regional pool, and no longer have high load to contend with.
A complete fix is more than you've submitted so far. It should use the user's time zone to set the proper sub-pool, e.g.:
0.north- america. pool.ntp. org america. pool.ntp. org america. pool.ntp. org america. pool.ntp. org
1.north-
2.north-
3.north-
Normally you set 3 or 4 servers, so no one bad server can result in incorrect time.
The current ubuntu ntp server could then be recycled to become part of a regional pool, and no longer have high load to contend with.