You don't indicate which version you are using but if it is a newer one (8 or newer) the default is to use hibernation so the system appears to boot...
If installer sees DOS, MBR(msdos), with Windows it will try to install in BIOS mode. If Ubuntu installs in either UEFI or BIOS mode to MBR drive, you...
My wife's laptop, also Ubuntu 20.04, doesn't experience this problem, and "systemd-timesyncd" does not appear in its syslog. Nor does timesyncd.conf...
Maybe one of the gurus here can explain why the time server would be waiting over six minutes for time synchronization with a remote time server when...
