diff --git a/frappe/geo/country_info.json b/frappe/geo/country_info.json
index 8ff39c37d76..8ce03b94056 100644
--- a/frappe/geo/country_info.json
+++ b/frappe/geo/country_info.json
@@ -2648,6 +2648,9 @@
   "currency": "TZS",
   "currency_name": "Tanzanian Shilling",
   "number_format": "#,###.##",
+  "timezones": [
+    "Africa/Dar_es_Salaam"
+  ],
   "isd": "+255"
  },
  "Thailand": {