diff --git a/timezone/antarctica b/timezone/antarctica
index f3efe19b68..8a9ea939c9 100644
--- a/timezone/antarctica
+++ b/timezone/antarctica
@@ -1,4 +1,4 @@
-# @(#)antarctica	7.30
+# @(#)antarctica	8.1
 # <pre>
 
 # From Paul Eggert (1999-11-15):
diff --git a/timezone/asia b/timezone/asia
index 059ad7f245..446cc16e6f 100644
--- a/timezone/asia
+++ b/timezone/asia
@@ -1,4 +1,4 @@
-# @(#)asia	7.91
+# @(#)asia	8.1
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
diff --git a/timezone/australasia b/timezone/australasia
index 6cf9761012..70b845560e 100644
--- a/timezone/australasia
+++ b/timezone/australasia
@@ -1,4 +1,4 @@
-# @(#)australasia	7.78
+# @(#)australasia	8.1
 # <pre>
 
 # This file also includes Pacific islands.
diff --git a/timezone/backward b/timezone/backward
index 4ddfe41e99..66fbf30618 100644
--- a/timezone/backward
+++ b/timezone/backward
@@ -1,4 +1,4 @@
-# @(#)backward	7.30
+# @(#)backward	8.1
 
 # This file provides links between current names for time zones
 # and their old names.  Many names changed in late 1993.
diff --git a/timezone/etcetera b/timezone/etcetera
index 431206ec3d..cddbe8a294 100644
--- a/timezone/etcetera
+++ b/timezone/etcetera
@@ -1,4 +1,4 @@
-# @(#)etcetera	7.12
+# @(#)etcetera	8.1
 
 # These entries are mostly present for historical reasons, so that
 # people in areas not otherwise covered by the tz files could "zic -l"
diff --git a/timezone/europe b/timezone/europe
index 8782860e86..54146d7400 100644
--- a/timezone/europe
+++ b/timezone/europe
@@ -1,4 +1,4 @@
-# @(#)europe	7.96
+# @(#)europe	8.1
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
diff --git a/timezone/factory b/timezone/factory
index ba27c63269..946063c0dd 100644
--- a/timezone/factory
+++ b/timezone/factory
@@ -1,4 +1,4 @@
-# @(#)factory	7.3
+# @(#)factory	8.1
 
 # For companies who don't want to put time zone specification in
 # their installation procedures.  When users run date, they'll get the message.
diff --git a/timezone/iso3166.tab b/timezone/iso3166.tab
index 07b43fc7c4..1cfaf265c2 100644
--- a/timezone/iso3166.tab
+++ b/timezone/iso3166.tab
@@ -1,6 +1,6 @@
 # ISO 3166 alpha-2 country codes
 #
-# @(#)iso3166.tab	1.17
+# @(#)iso3166.tab	8.1
 #
 # From Paul Eggert (2004-06-14):
 #
diff --git a/timezone/leapseconds b/timezone/leapseconds
index a1078837d7..d2b506bab5 100644
--- a/timezone/leapseconds
+++ b/timezone/leapseconds
@@ -1,4 +1,4 @@
-# @(#)leapseconds	7.20
+# @(#)leapseconds	8.1
 
 # Allowance for leapseconds added to each timezone file.
 
diff --git a/timezone/northamerica b/timezone/northamerica
index 087fa544e6..73e2470e0b 100644
--- a/timezone/northamerica
+++ b/timezone/northamerica
@@ -1,4 +1,4 @@
-# @(#)northamerica	7.88
+# @(#)northamerica	8.1
 # <pre>
 
 # also includes Central America and the Caribbean
diff --git a/timezone/pacificnew b/timezone/pacificnew
index 86dd688341..667940bf53 100644
--- a/timezone/pacificnew
+++ b/timezone/pacificnew
@@ -1,4 +1,4 @@
-# @(#)pacificnew	7.10
+# @(#)pacificnew	8.1
 
 # From Arthur David Olson (1989-04-05):
 # On 1989-04-05, the U. S. House of Representatives passed (238-154) a bill
diff --git a/timezone/solar87 b/timezone/solar87
index 21ba2c2d64..71839320ad 100644
--- a/timezone/solar87
+++ b/timezone/solar87
@@ -1,4 +1,4 @@
-# @(#)solar87	7.4
+# @(#)solar87	8.1
 
 # So much for footnotes about Saudi Arabia.
 # Apparent noon times below are for Riyadh; your mileage will vary.
diff --git a/timezone/solar88 b/timezone/solar88
index 7e15f2b077..b4cfe8e37a 100644
--- a/timezone/solar88
+++ b/timezone/solar88
@@ -1,4 +1,4 @@
-# @(#)solar88	7.4
+# @(#)solar88	8.1
 
 # Apparent noon times below are for Riyadh; they're a bit off for other places.
 # Times were computed using formulas in the U.S. Naval Observatory's
diff --git a/timezone/solar89 b/timezone/solar89
index 3c36b6a30d..8c48531461 100644
--- a/timezone/solar89
+++ b/timezone/solar89
@@ -1,4 +1,4 @@
-# @(#)solar89	7.5
+# @(#)solar89	8.1
 
 # Apparent noon times below are for Riyadh; they're a bit off for other places.
 # Times were computed using a formula provided by the U. S. Naval Observatory:
diff --git a/timezone/southamerica b/timezone/southamerica
index eb7b5c7d84..3a61cd717a 100644
--- a/timezone/southamerica
+++ b/timezone/southamerica
@@ -1,4 +1,4 @@
-# @(#)southamerica	7.66
+# @(#)southamerica	8.1
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
diff --git a/timezone/systemv b/timezone/systemv
index a5b4209c3f..6cf9645de0 100644
--- a/timezone/systemv
+++ b/timezone/systemv
@@ -1,4 +1,4 @@
-# @(#)systemv	7.5
+# @(#)systemv	8.1
 
 # Old rules, should the need arise.
 # No attempt is made to handle Newfoundland, since it cannot be expressed
diff --git a/timezone/zone.tab b/timezone/zone.tab
index b2e12460e9..09cdf6940a 100644
--- a/timezone/zone.tab
+++ b/timezone/zone.tab
@@ -1,4 +1,4 @@
-# @(#)zone.tab	1.33
+# @(#)zone.tab	8.1
 #
 # TZ zone descriptions
 #