A person with Time-Space Synesthesia has an involuntary sense of units of time (months, days, weeks) being located in places in space usually related to the body.
These units usually have shape and color as well. The days of the week might be perceived as a circle around one’s body, with Saturday being above the head and Friday being down by the feet. This type of synesthesia serves almost as an internal clock for a synesthete—a synesthete may
“ ‘How do you picture the calendar year?’
‘Just like everybody else,’ I assure him. ‘You know, like you’re sitting on top of a Ferris wheel at the amusement park. January is at the top of the wheel. If the wheel were a clock, January would be twelve. Then as the days go by, the wheel turns to the left, and February is at eleven. By the time summer comes around I’m at the bottom of the wheel, but the wheel is sort of lying flat on the ground now. Then in August it starts to rise again.’
I lean back, content that at least in this regard, I am normal. It takes me a second to register the fact that no one is agreeing with my description. My mother’s mouth is actually hanging open.
‘Not everyone sees the year like this?’ I ask weakly.”