Hour dream meaning is explained below using 3 different sources. Each interpretation is shown with its source.

Interpretation 1 — Zolar

lucky numbers: 02-10-12-21-29-42

clock chiming the: wait until the last chime to make major decisions.

cuckoo giving the: unexpected wealth through your forwardness.

eleventh, the: anxiety before a deadline.

hourglass, of an: are running out of time to save your relationship.

with all the sand at the bottom: concentrate on what you have achieved.

seeing the, on a clock in the street: for the stability of your life, donate to charity.

wristwatch: wil lose a friend with your inability to arrive on time.

Source: Zolar’s Book of Dreams Numbers and Lucky Days Author: Zolar

Interpretation 2 — Stearn Robinson - Tom Corbett

A dream in which you heard a clock strike or were otherwise made aware of the hour suggests that you are exerting your energy in the right direction; but to dream of sand running through an hourglass is a warning against wasting your time in meaningless pursuits.
Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 3 — Joan Seaman - Tom Philbin

1. Worry over time, promptness.

2. Feelings of loss, often regarding relationships.

3. Secrets revealed.

Source: New American Dream Dictionary Author: Joan Seaman - Tom Philbin