Time is something we humans made up.
Yes, we create the time at first by following the rotation of the earth after we create hours, minutes and seconds so since we are the one who create time the Past, Présent, futur do not exist either it is always the same moment i say moment to explain that time is our invention.
Precisely right.
Most people do not know that Time does not really exist.
It is merely a human creation for the purposes of reference.
A second is a heartbeat.
A day is one rotation of the Earth.
A year is one revolution around the Sun.
A minute is the Babylonian magical 60 times a second.
An hour is the Babylonian magical 60 times a minute, or 360 seconds.
Note also that the circle is coincidentally divided into 360 degrees, giving us 90 degree right angles and 180 degree straight lines.
Magically there are 24 hours in one rotation of the Earth.
Thus the human heart beats 60 x 60 x 24 = 86,400 times give or take per day.
31.6 million times per year.
3.2 billion times per lifetime (for a Centenarian).
Time is a relative measurement but time does not really exist.
Same is true of mathematics as well -- it also does not really exist -- only in the minds of humankind.