Riddle

My first is a part of day, my last a conductor of light. Measure of time useful day and night. What am I?

Choose an answer

A.A clock
B.A sun-dial
C.A calendar
D.An Hour-glass
Hint: It's a 2-word phrase with 11 letters, starting with "A".

Answer

An Hour-glass

Why this is the answer

Sand (last) conducts through the glass to measure time (whole).

This riddle is filed under Dark Riddles and rated Medium.

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