Avoid outdated chrono functions #1775

Job	Run time
Rustfmt (stable)	19s
Build and Test (ubuntu-latest, 1.64)	2m 42s
Build and Test (ubuntu-latest, 1.65)	2m 42s
Build and Test (ubuntu-latest, 1.70)	2m 59s
Build and Test (ubuntu-latest, stable)	3m 1s
Build and Test (ubuntu-latest, beta)	2m 53s
Build and Test (ubuntu-latest, nightly)	2m 57s
Build and Test (windows-latest, 1.64)	2m 45s
Build and Test (windows-latest, 1.65)	2m 44s
Build and Test (windows-latest, 1.70)	2m 52s
Build and Test (windows-latest, stable)	2m 42s
Build and Test (windows-latest, beta)	2m 43s
Build and Test (windows-latest, nightly)	2m 41s
clippy_check (ubuntu-latest, stable)	57s
clippy_check (ubuntu-latest, nightly)	57s
clippy_check (windows-latest, stable)	3m 33s
clippy_check (windows-latest, nightly)	2m 21s
Tests result	2s
	41m 50s

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