We'd like to be able to specify the ntp servers during the IPI installation we're trying to install our OpenShift cluster in a disconnected environment with Internet access and use an internal ntp server. 

The issue that we have is installing/bootstrapping the cluster we sometimes get the server delivered with an incorrect date/time which prevents us to bootstrap the cluster.
During the initial cluster installation bootstrap with the IPI installation, the RedHat ntp servers are always used.

The Partner has followed these Solutions below (edit bootstrap ignition and supply machine config) but they are unable to set the NTP servers.

1. https://access.redhat.com/solutions/4909411
2. https://access.redhat.com/solutions/4906341

The NTP servers remain on the default ones instead of the ones specified by the partner.

They would like to use their own NTP servers.

Must-gather is attached to the support case.