Moving the time interpolation down to within _Interpolator functions #701

Job	Run time
mypy	3m 22s
py3.13 \| macos \| unit tests	9m 33s
py3.13 \| macos \| integration tests	14m 32s
py3.13 \| ubuntu \| unit tests	9m 31s
py3.13 \| ubuntu \| integration tests	14m 56s
py3.13 \| windows \| unit tests	12m 7s
py3.13 \| windows \| integration tests	22m 45s
py3.10 \| ubuntu \| unit tests	11m 5s
py3.10 \| ubuntu \| integration tests	16m 6s
py3.11 \| ubuntu \| unit tests	9m 50s
py3.12 \| ubuntu \| unit tests	9m 42s
merge-test-artifacts	1s
	2h 13m 30s

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