diff --git a/changelog.d/933.data.rst b/changelog.d/933.data.rst
deleted file mode 100644
index c16f82728..000000000
--- a/changelog.d/933.data.rst
+++ /dev/null
@@ -1 +0,0 @@
-Updated tzdata version to 2019b.
diff --git a/changelog.d/961.data.rst b/changelog.d/961.data.rst
new file mode 100644
index 000000000..b963a38f2
--- /dev/null
+++ b/changelog.d/961.data.rst
@@ -0,0 +1 @@
+Updated tzdata version to 2019c.
diff --git a/dateutil/zoneinfo/dateutil-zoneinfo.tar.gz b/dateutil/zoneinfo/dateutil-zoneinfo.tar.gz
index 5825962ce..89e83517b 100644
Binary files a/dateutil/zoneinfo/dateutil-zoneinfo.tar.gz and b/dateutil/zoneinfo/dateutil-zoneinfo.tar.gz differ
diff --git a/zonefile_metadata.json b/zonefile_metadata.json
index f4aa48dcb..cf9deef93 100644
--- a/zonefile_metadata.json
+++ b/zonefile_metadata.json
@@ -4,9 +4,9 @@
         "https://dateutil.github.io/tzdata/tzdata/",
         "ftp://ftp.iana.org/tz/releases/"
     ],
-    "tzdata_file": "tzdata2019b.tar.gz",
-    "tzdata_file_sha512": "c0104078d994e501d80a41bea31364b1390a75c2fbf42968a8343a090e2ac2eddbc58770ca470b192ea19dec89fcc634141a1de703ea2ffa0325176a64afe1fc",
-    "tzversion": "2019b",
+    "tzdata_file": "tzdata2019c.tar.gz",
+    "tzdata_file_sha512": "2921cbb2fd44a6b8f7f2ed42c13fbae28195aa5c2eeefa70396bc97cdbaad679c6cc3c143da82cca5b0279065c02389e9af536904288c12886bf345baa8c6565",
+    "tzversion": "2019c",
     "zonegroups": [
         "africa",
         "antarctica",