well I tried setting NTP as Gateway but that failed earlier because my router was not responding to NTP requests when enabled
reconfigured NTP server on my router and changed dietpi NTP mode to Gateway, now its responding to NTP requests

boot time drastically reduced to 2-8 seconds

though DHCP is taking more time versus STATIC IP
with DHCP IP
Code: Select all
root@pihole:~# systemd-analyze blame
8.380s dietpi-boot.service
Code: Select all
root@pihole:~# systemd-analyze blame
2.358s dietpi-boot.service
root@pihole:~# journalctl -u systemd-timesyncd
-- Logs begin at Tue 2020-01-21 02:42:09 PKT, end at Tue 2020-01-21 02:50:02 PKT. --
Jan 21 02:42:11 pihole systemd[1]: Starting Network Time Synchronization...
Jan 21 02:42:12 pihole systemd[1]: Started Network Time Synchronization.
Jan 21 02:42:21 pihole systemd-timesyncd[532]: Synchronized to time server for the first time 192.168.0.1:123 (192.168.0.1). Jan 21 02:42:21 pihole systemd[1]: Stopping Network Time Synchronization...
Jan 21 02:42:21 pihole systemd[1]: systemd-timesyncd.service: Succeeded.
Jan 21 02:42:21 pihole systemd[1]: Stopped Network Time Synchronization.