Question

what is time? what its si unit

Answer 1

Answer:

Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future

Answer 2

• Time is described as the present, past, and future progression of existence.
• The presence of occurrences may be measured using a time unit. The most often used time units are as follows:
• Second \Minute \Hour
• The SI Time Unit
• The second is the SI unit of time, which is defined as "the time interval equal to 9192631770 periods of radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom (13th CGPM, 1967)."
• In any event, s or sec are common abbreviations for the unit second.