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diff -Nrup a/Makefile b/Makefile
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--- a/Makefile	2020-10-13 15:58:12.000000000 -0400
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+++ b/Makefile	2020-10-13 16:03:09.461302282 -0400
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@@ -60,7 +60,7 @@ LOCALTIME=	GMT
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 #	make zonenames
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 # to get a list of the values you can use for POSIXRULES.
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-POSIXRULES=	-
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+POSIXRULES=    America/New_York
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 # Also see TZDEFRULESTRING below, which takes effect only
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 # if the time zone files cannot be accessed.
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Binary files a/tzdata2020b-rearguard.tar.gz and b/tzdata2020b-rearguard.tar.gz differ