What is the word for the space between the hours marker in a clock face

For example, there is a space between the number 4 and the number 5 in a clock. What is the name for this other than "space"


Solution 1:

Not specific for clocks, you can call it an "interspace" or "interval".

interspace (noun) - A space between two things; an interval.

Solution 2:

Any such space (not necessarily on a clock-face) can be termed an interstice.

M-W:

interstice noun

1 a: a space that intervenes between things; especially :one between closely spaced things

pesky weeds growing in the interstices between the flagstones