Configure NTP on an ESXI host

Configure NTP is a mandatory task and it should be done as soon as possibile. Using vSphere Web Client look for Host -> Manage -> Settings:

ntp_on_esxi

Using CLI:

export VI_SERVER=172.31.30.4
export VI_USERNAME=EXAMPLE\\Administrator
export VI_PASSWORD=Password
$ vicfg-ntp -h esxi1.example.com --add ntp1.example.com
$ vicfg-ntp -h esxi1.example.com --start
$ vicfg-ntp -h esxi1.example.com --list
Configured NTP servers:

ntp1.example.com

Using Host Profiles: General System Settings -> Date and Time Configuration -> Date and time configuration

ntp_on_profiles

Remember: ESXi uses UTC time and does not support changing time zones.