OK, I figured out a way to do this that works for me, and since I’ve seen this question asked several times before with no answer, here’s what I came up with.
I couldn’t find any way to use the Alarm in Clock, so after my device turns off, I play music with my HomePods to act as an alarm.
This automation does the following: 1) Turns on an accessory 2) Waits 555 seconds (~10 minutes) 3) Turns off the accessory 4) Waits 5 seconds 6) Plays music on my HomePod for 15 seconds 5) Stops the Music
1) Open the Home app
2) Select: Automation (bottom of the screen)
3) Click on the + symbol (Upper Right Corner)
4) Choose: Add Automation
5) Select: An Accessory is Controlled
6) Select Accessory (or Accessories)
7) Tap: Next
8) Select: Turns On
9) Tap: Next
10) Scroll to bottom of page and tap: Convert to Shortcut
11) Tap on: Scenes & Accessories.
12) Select your Accessory again from step 6 which was lost when Converted to Shortcut
13) Tap: Next
14) Reset parameters by touching accessory (Turns On)
15) Tap: Done
16) At the bottom of the page, search for: Wait
17) Tap: Wait
18) Tap on: 1 Second to set desired Wait time
19) In the search field, type Home
20) Select: Control My Home
21) Tap on: Scenes and Accessories
22) Select Accessory
23) Tap: Next
24) Tap Accessory to set to: Turns Off
25) Tap: Done
26) In the search field, type wait.
27) Select: Wait
28) Set to a few seconds
29) Search for Home
30) Select: Control My Home
31) Tap On: Scenes and Accessories
32) Select a device to act as an alarm (I chose both my Homepods)
33) Tap: Next
34) Tap: Play Audio
35)Tap: Choose Audio & select a song or tone
36) Tap: Back
37) Tap: Done
38) Search for: Wait
39) Select: Wait
40) Set how long your Alarm will be On
41) Search for: Home
42) Select: Control My Home
43) Select Accessory (Homepods)
44) Tap: Next
45) Touch Accessory (Homepod) to set to Pause
46) Tap: Done
47) Search: Stop
48) Select: Stop This Shortcut
49) Tap: Next
50) Tap: Done
You're automation should look something like this:
