diff --git a/.gitmodules b/.gitmodules
index a618104f364..b6c5a26f105 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -369,3 +369,6 @@
 [submodule "contrib/idna"]
 	path = contrib/idna
 	url = https://github.com/ada-url/idna.git
+[submodule "contrib/expected"]
+	path = contrib/expected
+	url = https://github.com/TartanLlama/expected
diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index c6d1dcb41e6..e780d6e6ae3 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -222,6 +222,7 @@ else ()
 endif ()
 
 add_contrib (xxHash-cmake xxHash)
+add_contrib (expected-cmake expected)
 
 add_contrib (libbcrypt-cmake libbcrypt)
 
diff --git a/contrib/expected b/contrib/expected
new file mode 160000
index 00000000000..3f0ca7b1925
--- /dev/null
+++ b/contrib/expected
@@ -0,0 +1 @@
+Subproject commit 3f0ca7b19253129700a073abfa6d8638d9f7c80c
diff --git a/contrib/expected-cmake/CMakeLists.txt b/contrib/expected-cmake/CMakeLists.txt
new file mode 100644
index 00000000000..4ea77f28d62
--- /dev/null
+++ b/contrib/expected-cmake/CMakeLists.txt
@@ -0,0 +1,3 @@
+add_library(expected INTERFACE)
+target_include_directories(expected SYSTEM BEFORE INTERFACE "${ClickHouse_SOURCE_DIR}/contrib/expected/include")
+add_library(ch_contrib::expected ALIAS expected)
diff --git a/src/Functions/CMakeLists.txt b/src/Functions/CMakeLists.txt
index 733ae25274e..11bcc948288 100644
--- a/src/Functions/CMakeLists.txt
+++ b/src/Functions/CMakeLists.txt
@@ -46,6 +46,7 @@ list (APPEND PUBLIC_LIBS
 
 list (APPEND PRIVATE_LIBS
         ch_contrib::zlib
+        ch_contrib::expected
         boost::filesystem
         divide_impl
         ch_contrib::xxHash
diff --git a/src/Functions/parseDateTime.cpp b/src/Functions/parseDateTime.cpp
index 7a0d7c75774..31e1162bccc 100644
--- a/src/Functions/parseDateTime.cpp
+++ b/src/Functions/parseDateTime.cpp
@@ -16,6 +16,7 @@
 #include <IO/WriteHelpers.h>
 #include <boost/algorithm/string/case_conv.hpp>
 
+#include <tl/expected.hpp>
 
 namespace DB
 {