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 @40.095s
└─multi-user.target @40.094s
  └─libvirtd.service @33.802s +212ms
    └─remote-fs.target @33.799s
      └─remote-fs-pre.target @33.798s
        └─nfs-client.target @33.797s
          └─gssproxy.service @2.681s +31.105s
            └─basic.target @2.674s
              └─sockets.target @2.674s
                └─iscsid.socket @2.674s
                  └─sysinit.target @2.669s
                    └─systemd-update-utmp.service @2.663s +6ms
                      └─auditd.service @2.626s +27ms
                        └─systemd-tmpfiles-setup.service @2.585s +31ms
                          └─fedora-import-state.service @2.555s +23ms
                            └─local-fs.target @2.549s
                              └─run-user-42.mount @34.048s
                                └─local-fs-pre.target @2.491s
                                  └─lvm2-monitor.service @315ms +164ms
                                    └─lvm2-lvmetad.service @352ms
                                      └─lvm2-lvmetad.socket @308ms
                                        └─-.mount
                                          └─system.slice
                                            └─-.slice