Systemd: How to check scheduled time of a delayed shutdown

I like to use shutdown -h TIME/+DELAY sometimes. However, since the switch to systemd (on Ubuntu), things seem to have changed quite a bit.

Apart from the fact that a previous shutdown command no longer prevents running a new one, I can't figure out how to check for the planned shutdown time of a current shutdown process.

I used to just run ps aux | grep shutdown to see the planned shutdown time.

Now with systemd it just shows something like this:

root      5863  0.0  0.0  13300  1988 ?        Ss   09:04   0:00 /lib/systemd/systemd-shutdownd

How can I check the scheduled shutdown time of such a process?

I tried shutdown -k, but instead of only writing a wall message, it seems to also change the scheduled shutdown time to now+1 minute.