What are these “Power Events:” > “Next Scheduled Events:” that are showing up in my macOS system information? I am running macOS Catalina Public Beta 9 (10.15, 19A573a) on my MacBook Air (2019) and noticed these — at least to my eyes — odd entries under “Hardware > Power” when looking at system information. FWIW, I don’t recall ever seeing these under “Hardware > Power” when running macOS Mojave (10.14):

Power Events:

  Next Scheduled Events:

    appPID: 353
    Type:   Wake
    Scheduled By:   com.apple.alarm.user-invisible
    Time:   10/6/19, 6:27 AM
    UserVisible:    0

    appPID: 356
    Type:   Wake
    Scheduled By:   com.apple.alarm.user-invisible
    Time:   10/6/19, 7:47 AM
    UserVisible:    0


I have utterly no alarms or power events that I have set on my Mac and double checking under “Energy Saver” as well as my calendar shows nothing as well. And besides, I would never set up crazy early morning alarms like this anyway.

Is this something connected to me using macOS Catalina Public Beta? Since November 6th seems to be the date macOS Catalina will come out of beta.

FWIW, checking my running processes right now I see the following for those appPID values:

501   356 ??         0:03.06 /usr/libexec/UserEventAgent (Aqua)
501   353 ??         0:02.74 /usr/sbin/cfprefsd agent


Found some info on cfprefsd on this Other World Computing post and UserEventAgent on this How-To Geek post. And the information is useful as to literally what these processes do, but no real explanation as to why they are set in this case.
you can use terminal command:

sudo pmset schedule cancelall


Then you can resolve it