For now, before the next app update, you could control the alarm using macOS or windows app. Here are the link:

https://support.sonos.com/en/downloads

Thanks @Zallah - i was clearly using the web app rather than the macOS one.  Appreciate your help!

Welcome

What are my options if I just have an iPhone?

5:30 am for ever seems unreasonable for kit this expensive (and which worked just fine before this ‘improvement’). 

How lame is it to update functionality so that the user has to log onto a computer to shut off an alarm? Thankfully, for me, I can ask Alexa to shut off the alarm.  Sad that we need to rely on another company’s technology for our high-priced equipment to work reasonably. 

Yup. My Move2 is now in the basement, where it’ll stay until Sonos (maybe) reintroduce a way to turn on/off alarms. There are other manufacturers; time to switch. 

I don’t have a personal computer that I can do this with. Is there any other way?

I’ll chime in. I haven’t had a desktop in years. I hope this functionality returns to the app asap. This is terrible. Meanwhile, I guess I’ll have to unplug each device when I don’t need the alarm. 

Why remove the alarm feature?!!!!!!!!!!!!!!

When I was just about to unplug the speakers I finally found the Alarm Settings on the iPhone App. Gear Icon > Manage (You  don’t see its a link) and there it is, hidden away.

Thank you! Finally, I can power it up and use it again. Much appreciated. 

Alarm settings are on the app but so difficult to find. Click settings then the word “Manage” to the right of your system name then click alarms. 
 

ol app so much better. They’ve gone for a look over UI functionality. Not enjoying this upgrade and agree with many that it’s a retrograde step.