diff --git a/README.md b/README.md
index 77433db..ea07a0f 100644
--- a/README.md
+++ b/README.md
@@ -218,6 +218,7 @@ America/New_York    -0500
 America/Denver      -0700
 America/Phoenix     -0700 (No DST)
 America/Los_Angeles -0800
+UTC                 Z
 Australia/Adelaide  +0930 (30-min, has DST)
 Asia/Kathmandu      +0545 (No DST, 45-min)
 Asia/Kolkata        +0530 (No DST, 30-min)
diff --git a/index.html b/index.html
index 4eed73f..da64f94 100644
--- a/index.html
+++ b/index.html
@@ -115,6 +115,7 @@ America/New_York    -0500 -0400             (Eastern Time)
 America/Denver      -0700 -0600             (Mountain Time)
 America/Phoenix     -0700 (No DST)          (Arizona Time)
 America/Los_Angeles -0800 -0700             (Pacific Time)
+UTC                 Z                       (UTC "Zulu" Time)
 Australia/Adelaide  +0930 +1030    (30-min)
 Asia/Kathmandu      +0545 (No DST) (45-min)
 Asia/Kolkata        +0530 (No DST) (30-min)</pre