Moving the time interpolation down to within _Interpolator functions #694

Job	Run time
mypy	3m 47s
py3.13 \| macos \| unit tests	8m 19s
py3.13 \| macos \| integration tests	14m 13s
py3.13 \| ubuntu \| unit tests	9m 3s
py3.13 \| ubuntu \| integration tests	14m 54s
py3.13 \| windows \| integration tests	27m 6s
py3.13 \| windows \| unit tests	14m 5s
py3.10 \| ubuntu \| integration tests	14m 54s
py3.10 \| ubuntu \| unit tests	10m 11s
py3.11 \| ubuntu \| unit tests	9m 51s
py3.12 \| ubuntu \| unit tests	9m 38s
merge-test-artifacts	0s
	2h 16m 1s

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