Moving the time interpolation down to within _Interpolator functions #665

Job	Run time
mypy	3m 30s
py3.13 \| macos \| integration tests	17m 21s
py3.13 \| macos \| unit tests	8m 14s
py3.13 \| ubuntu \| unit tests	9m 44s
py3.13 \| ubuntu \| integration tests	13m 13s
py3.13 \| windows \| unit tests	13m 37s
py3.13 \| windows \| integration tests	24m 2s
py3.10 \| ubuntu \| unit tests	10m 45s
py3.10 \| ubuntu \| integration tests	13m 20s
py3.11 \| ubuntu \| unit tests	9m 53s
py3.12 \| ubuntu \| unit tests	10m 7s
merge-test-artifacts	0s
	2h 13m 46s

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