Configure NTP on solaris


edit /etc/inet/ntp.server and put entry with server details

server external-time-server-a
server external-time-server-b
server external-time-server-c

To activate the ntp server try the following command:
# svcadm enable svc:/network/ntp:default
After that check if the service is running:
# svcs -a | grep ntp
# ps -ef | grep ntp