Time Within Structure

Riddle: I am a calming, and quiet object. I can tell the time, but not always by the hour. My unit of measure is as my creator makes it. What am I?

Answer: Hourglass.

Source: https://www.riddles.com/8305

Riddle: I am a calming, and quiet object. I can tell the time, but not always by the hour. My unit of measure is as my creator makes it. What am I? Answer: Hourglass. — by Roman McTizic v1.

Riddle: I am a calming, and quiet object. I can tell the time, but not always by the hour. My unit of measure is as my creator makes it. What am I? Answer: Hourglass. — by Roman McTizic v2.