So the final result:
The actual markers will be included in the appropriate printsheets, but this is a preview.
Each token includes the rigth color, illustrations and name.
The backside will be solid color only.
The time markers will be included on the Barbarian printsheets
Each marker is 11 millimeters squared and will fit right between the borders of the squares on the AST which will be 12 mm squared each.
A player token is 16 mm.
I've though of an image on the time makers. But the several measurments tools varied through time and civilizations. These are examples.




This is why I stepped off of this and just use the word 'time' for this token.
the final AST will have this time marker range included, either for reference or optional rule as game-ender.