backport timezone fixes from 0.9.x to 0.8.x #113

Job	Run time
pure-python	17s
build on linux (armv7) (auto)	3m 17s
build on linux (ppc64le) (auto)	3m 5s
build on linux (x86_64) (auto)	2m 21s
build on linux (x86_64) (musllinux_1_2)	2m 39s
build on linux (aarch64) (auto)	3m 13s
build on linux (x86) (auto)	3m 43s
build on linux (aarch64) (musllinux_1_2)	2m 28s
build on linux (s390x) (auto)	3m 11s
build on linux (x86) (musllinux_1_2)	2m 39s
build on windows (x86_64) (auto)	5m 2s
build on linux (armv7) (musllinux_1_2)	2m 37s
build on windows (x86) (auto)	7m 55s
build on macos (aarch64) (auto)	2m 9s
build on macos (x86_64) (auto)	1m 48s
Release	2m 27s
	48m 51s

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