Any of them, actually.
ancient people sed constellations civilizations ago to tell time, not time in a day rather to tell when to sow, harvest and etc. this was successful for the time as constellations were patterns in the sky and important ones, those used to tell time, were easily remembered.
There is no such constellation and, as far as I can tell, there never was.
you tell me
Constellations are basically different shapes made from the position of the stars. The Greeks and Romans used constellations to tell stories of each constellation. One example of a constellation is Orion; the warrior of the skies.
you tell me
i think the best time to watch a constellation is at night
The best time to see a constellation in the night sky is after the sunset. The best time to see a constellation in the morning is before sunrise.
the constellation 'Ursa major' is used to identify the pole star
The clock has been used to tell time on ships for centuries.
People in the southern hemisphere often use the Southern Cross constellation to help determine the direction of south. This constellation is easily identifiable and can be used as a navigational tool since its orientation can point towards the south pole.
The constellation Hercules is best viewed in July.
The star you're looking for to tell direction is Polaris, the North Star. If you know what time it is, and have an accurate star map, you could use Betelgeuse to tell direction, but it's difficult.