harrietsfriend

It is all relative. After all it is only a construct without any real significance to the physical world, and yet it is always there in effect. Time might be defined as the 24 hour day, made up of minutes or seconds of the whole. Years, today are defined as 365 days a year. And yet the day (sidereal time) is 23 hours, 56 minutes and 4.05 seconds, with more parts of this fraction. Beginning start times vary in cultures as the Gregorian calendar of 1582 changed from the Julian calendar, currently 13 days off, and it will be 14 days in the year 2100. All of this to calculate Easter, which is defined by religions, Christianity only one of many. Of course this sidereal clock varies depending on the wobble of the earth through millenniums. There is also the cosmic definition of time not eons, but almost infinite length from the big bang creation to before, another unknown. There is relative time. The time which fleets by from Monday to Sunday, passing quicker as you get older, or