Hourglass timers with alarm triggers

A timer, comprising:

• an hourglass including:
• a top globe;
• a bottom globe;
• and
• a neck connecting the top globe and the bottom globe and defining a sand passageway between the top globe and the bottom globe;
• a frame pivotally supporting the hourglass at the neck with the bottom globe disposed below the top globe;
• and
• a trigger pivotally coupled to the frame in a position to be engaged by the bottom globe when the hourglass pivots on the frame to a selected extent;
• wherein:
• the hourglass is configured to contain sand disposed inside one or more of the top globe, the bottom globe, and the neck;
• the hourglass is configured to allow the sand to flow from the top globe to the bottom globe through the neck under the influence of gravity;
• the hourglass pivots on the frame in response to sand flowing from the top globe to the bottom globe;
• and
• the selected extent the hourglass must pivot for the bottom globe to engage the trigger corresponds to a selected amount of time.