Ever since I was a kid, there are some things that, when I mentally picture them, have associated colors bound to them. Days of the week are pretty clear for me.<p>Monday is red, Tuesday and Thursday are green. Wednesday is a light blue, Friday is red (feels a bit warmer, maybe slightly orange than Monday). Saturday is yellow, Sunday is black (I always associated Sunday with church, and either dread of going or formal wear).<p>I do this with other things too but days of the week are the most obvious and have been with me my whole life (I&#x27;m 30 now).<p>Oh, I guess I do the inner monologue when estimating time. Something like &quot;Lets see... is it 8 minutes? No that&#x27;s too fast. 12 minutes? Maybe. Let&#x27;s go with 11&quot;. Didn&#x27;t even consider it as part of the process until your comment.