Comment 4 for bug 1882261

$ systemd-analyze critical-chain snapd.service
The time when unit became active or started is printed after the "@" character.
The time the unit took to start is printed after the "+" character.

snapd.service +12.817s
└─basic.target @2.641s
  └─sockets.target @2.641s
    └─snapd.socket @2.637s +2ms
      └─sysinit.target @2.617s
        └─systemd-timesyncd.service @2.347s +268ms
          └─systemd-tmpfiles-setup.service @2.324s +20ms
            └─local-fs.target @2.316s
              └─boot-efi.mount @2.306s +8ms
                └─systemd-fsck@dev-disk-by\x2duuid-DEA6\x2dE70F.service @1.871s +428ms
                  └─dev-disk-by\x2duuid-DEA6\x2dE70F.device @1.806s