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