diff --git a/Cargo.toml b/Cargo.toml
index bceebb5..3d37541 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tzconvert"
-version = "1.2.0"
+version = "1.2.1"
 edition = "2018"
 authors = ["Jonathan Strong <jstrong@mmcxi.com>"]
 
diff --git a/src/lib.rs b/src/lib.rs
index 4c237cd..5a588f8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -45,6 +45,8 @@ fn convert_common_tz_abbrs(tz: &str) -> &str {
     if tz.eq_ignore_ascii_case("CET") { return "Europe/Brussels" }
     if tz.eq_ignore_ascii_case("CEST") { return "Europe/Brussels" }
     if tz.eq_ignore_ascii_case("Brussels") { return "Europe/Brussels" }
+    if tz.eq_ignore_ascii_case("utc") { return "UTC" }
+    if tz.eq_ignore_ascii_case("z") { return "UTC" }
 
     tz
 }