Topic: 'One time alarm' suggestion
I was using the "One time alarm" feature for the first time last night, and the default date when you're setting the alarm is actually today's date.
I didn't notice this initially (hey, I was tired - that's why I was setting the alarm!) and it allowed me to completely define the alarm for a date and time in the past. I suggest you consider a minor change here - to set the default date for the 'one time alarm' to current date + 1 (tomorrow)... if some one needs an alarm for later the same day, they can easily change it, but the majority of users will likely want a one time alarm for tomorrow sometime.
Does that make sense?