systemd-analyze critical-chain
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.

graphical.target @5min 26.897s
└─lightdm.service @5min 26.674s +221ms
  └─fruhod.service @5min 25.651s +1.005s
    └─ccpd.service @5min 25.642s +7ms
      └─apache2.service @5min 18.242s +7.384s
        └─network-online.target @5min 18.232s
          └─network.target @5min 18.232s
            └─wpa_supplicant.service @40.390s +370ms
              └─basic.target @32.171s
                └─sockets.target @32.171s
                  └─snapd.socket @32.170s +317us
                    └─sysinit.target @32.129s
                      └─systemd-update-utmp.service @31.902s +227ms
                        └─systemd-tmpfiles-setup.service @31.534s +351ms
                          └─systemd-journal-flush.service @8.199s +23.322s
                            └─systemd-remount-fs.service @8.090s +99ms
                              └─systemd-journald.socket @3.971s
                                └─-.mount @3.948s
                                  └─system.slice @3.971s
                                    └─-.slice @3.948s