set system domain-name 8.8.8.8
https://www.fir3net.com/Firewalls/Juniper/juniper-srx-configuring-time-date-and-ntp.html
set system time-zone Europe/London
set system ntp server 0.uk.pool.ntp.org prefer
set system ntp server 1.uk.pool.ntp.org
set system ntp server 2.uk.pool.ntp.org
operation mode:
> set date ntp 0.uk.pool.ntp.org