Question: Is there any evidence or proof of the concept of time?

Rowena Fletcher-Wood answered on 19 Mar 2014:

The concept of time is an a priori assumption, which means we instinctively “get” it and so presume it’s true. In a round about but somewhat dodgy way this means that so long as other stuff which assumes it makes sense the concept is “evidenced” because the axiom/starting point is reinforced.

However, there are times the concept of time doesn’t quite work, like in the book Round the Worl in 80 Days they travel for 80 days but have 81 days to get back 80 days later because they save tiny bits of time by moving round the globe. This may as well be time travel.

Even weirder and more wonderful is relativity where moving fast at something causes time dilation: the person moving fast experiences lesd time than an observer. Again, time travel (be it only at speeds close to the speed of light). In a way, this is the breakdown of classical time theory. Time as we know it locally assuming broad time zones (that didn’t used to be: you used to travel on a train in the UK and time would be out by a few minutes at your destination) doesn’t work. So there is evidence AGAINST time. Or, to put it scientifically, it’s a good workibg theory, within its limits.