Fix DateTime out-of-range panics #2684

Job	Run time
rust_versions (ubuntu-latest, stable)	1m 45s
rust_versions (ubuntu-latest, beta)	1m 50s
rust_versions (ubuntu-latest, nightly)	1m 49s
timezones (ubuntu-latest, ACST-9:30)	2m 26s
alternative_targets (ubuntu-latest, wasm32-unknown-emscripten)	35s
timezones (ubuntu-latest, EST4)	2m 20s
alternative_targets (ubuntu-latest, aarch64-apple-ios)	25s
check-docs	29s
alternative_targets (ubuntu-latest, aarch64-linux-android)	23s
timezones (ubuntu-latest, UTC0)	2m 49s
timezones (ubuntu-latest, Asia/Katmandu)	2m 19s
cross-targets (x86_64-sun-solaris)	2m 7s
cross-tests (ubuntu-latest)	2m 31s
timezones (macos-latest, ACST-9:30)	51s
timezones (macos-latest, EST4)	1m 20s
features_check (ubuntu-latest)	8m 43s
timezones (macos-latest, UTC0)	1m 59s
no_std (ubuntu-latest, thumbv6m-none-eabi)	22s
features_check (macos-latest)	13m 37s
timezones (macos-latest, Asia/Katmandu)	1m 37s
no_std (ubuntu-latest, x86_64-fortanix-unknown-sgx)	28s
features_check (windows-latest)	12m 57s
timezones (windows-latest, ACST-9:30)	2m 17s
rust_msrv (ubuntu-latest)	1m 45s
timezones (windows-latest, EST4)	8m 42s
test_wasi (ubuntu-latest, wasm32-wasi)	32s
timezones (windows-latest, UTC0)	2m 28s
timezones (windows-latest, Asia/Katmandu)	8m 46s
test_wasm (ubuntu-latest)	35s
	1h 28m 47s

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