Mainly by the moon and stars. Obviously this was rough and ready for most people but because there was far less light pollution and people were more knowledgeable about the night sky in general most adults would have been able to estimate the time to within 1 hour4fyjjyý
the star clock was invented so that people could tell what time it is at night without the use of clocks
You would need to prove that extraterrestrials exist before we can speculate on what type of spacecraft they have invented.
What would the world be like if clocks weren't around? For one thing, the world would be a lot more unorganised because schools, jobs, social gatherings and things like that all rely on them. If they weren't invented people would be late for things and they wouldn't be able to get up in time for school, jobs etc. Not getting to places can cause stress and worries because if it were a big job interview, you would stress about being late of course. clocks heap everyone in every single way. people use clocks to much for their own good. clocks have been used for good and bad but most of the time good.
They wore hats.
The shadow of the sun on sundials changes throughout the day as the sun moves across the sky. This allows one to estimate the time.
the star clock was invented so that people could tell what time it is at night without the use of clocks
Clocks. Sundials.
Clocks Are Like People was created on 2006-08-07.
They didn't. You can't use something BEFORE it is invented.
Alarm clocks are useful to keep people on track. Uses for alarm clocks or timers - waking up people, used for cooking.
hands
benches
Crawling
bikes
Buttons.
pickaxes
Sun dials and water clocks.