noun
interval
IN-ter-vul/ˈɪntərvl/
The measurable separation between two points.
A measuring ribbon spans the interval between the two bells.

Etymology
An interval originally named the space between palisades or ramparts. This physical gap became a general distance or separation, including a gap in time between events.
In context
I don't think any of us said very much about time traveling in the interval between that Thursday and the next.
More examples
- The buses arrive at ten-minute intervals.
- The shaded interval runs from zero to five.
- The interval between these two notes is an octave.
Forms
interval · intervals