diff --git a/src/Access/AuthenticationData.cpp b/src/Access/AuthenticationData.cpp
index 01d10f9ebe6..9223c3a8059 100644
--- a/src/Access/AuthenticationData.cpp
+++ b/src/Access/AuthenticationData.cpp
@@ -1,6 +1,7 @@
 #include <Access/AccessControl.h>
 #include <Access/AuthenticationData.h>
 #include <Common/Exception.h>
+#include <Interpreters/Access/getValidUntilFromAST.h>
 #include <Interpreters/Context.h>
 #include <Interpreters/evaluateConstantExpression.h>
 #include <Parsers/ASTExpressionList.h>
@@ -43,37 +44,6 @@ namespace ErrorCodes
     extern const int OPENSSL_ERROR;
 }
 
-namespace
-{
-    time_t getValidUntilFromAST(ASTPtr valid_until, ContextPtr context)
-    {
-        if (context)
-            valid_until = evaluateConstantExpressionAsLiteral(valid_until, context);
-
-        const String valid_until_str = checkAndGetLiteralArgument<String>(valid_until, "valid_until");
-
-        if (valid_until_str == "infinity")
-            return 0;
-
-        time_t time = 0;
-        ReadBufferFromString in(valid_until_str);
-
-        if (context)
-        {
-            const auto & time_zone = DateLUT::instance("");
-            const auto & utc_time_zone = DateLUT::instance("UTC");
-
-            parseDateTimeBestEffort(time, in, time_zone, utc_time_zone);
-        }
-        else
-        {
-            readDateTimeText(time, in);
-        }
-
-        return time;
-    }
-}
-
 AuthenticationData::Digest AuthenticationData::Util::encodeSHA256(std::string_view text [[maybe_unused]])
 {
 #if USE_SSL
diff --git a/src/Interpreters/Access/InterpreterCreateUserQuery.cpp b/src/Interpreters/Access/InterpreterCreateUserQuery.cpp
index 7d4693228cf..fc0f7610c90 100644
--- a/src/Interpreters/Access/InterpreterCreateUserQuery.cpp
+++ b/src/Interpreters/Access/InterpreterCreateUserQuery.cpp
@@ -8,6 +8,7 @@
 #include <Common/logger_useful.h>
 #include <Core/ServerSettings.h>
 #include <Interpreters/Access/InterpreterSetRoleQuery.h>
+#include <Interpreters/Access/getValidUntilFromAST.h>
 #include <Interpreters/Context.h>
 #include <Interpreters/executeDDLQueryOnCluster.h>
 #include <Interpreters/removeOnClusterClauseIfNeeded.h>
@@ -175,34 +176,6 @@ namespace
         else if (query.grantees)
             user.grantees = *query.grantees;
     }
-
-    time_t getValidUntilFromAST(ASTPtr valid_until, ContextPtr context)
-    {
-        if (context)
-            valid_until = evaluateConstantExpressionAsLiteral(valid_until, context);
-
-        const String valid_until_str = checkAndGetLiteralArgument<String>(valid_until, "valid_until");
-
-        if (valid_until_str == "infinity")
-            return 0;
-
-        time_t time = 0;
-        ReadBufferFromString in(valid_until_str);
-
-        if (context)
-        {
-            const auto & time_zone = DateLUT::instance("");
-            const auto & utc_time_zone = DateLUT::instance("UTC");
-
-            parseDateTimeBestEffort(time, in, time_zone, utc_time_zone);
-        }
-        else
-        {
-            readDateTimeText(time, in);
-        }
-
-        return time;
-    }
 }
 
 BlockIO InterpreterCreateUserQuery::execute()
diff --git a/src/Interpreters/Access/getValidUntilFromAST.cpp b/src/Interpreters/Access/getValidUntilFromAST.cpp
new file mode 100644
index 00000000000..caf831e61ee
--- /dev/null
+++ b/src/Interpreters/Access/getValidUntilFromAST.cpp
@@ -0,0 +1,37 @@
+#include <Interpreters/Access/getValidUntilFromAST.h>
+#include <Interpreters/evaluateConstantExpression.h>
+#include <IO/parseDateTimeBestEffort.h>
+#include <IO/ReadHelpers.h>
+#include <IO/ReadBufferFromString.h>
+#include <Storages/checkAndGetLiteralArgument.h>
+
+namespace DB
+{
+    time_t getValidUntilFromAST(ASTPtr valid_until, ContextPtr context)
+    {
+        if (context)
+            valid_until = evaluateConstantExpressionAsLiteral(valid_until, context);
+
+        const String valid_until_str = checkAndGetLiteralArgument<String>(valid_until, "valid_until");
+
+        if (valid_until_str == "infinity")
+            return 0;
+
+        time_t time = 0;
+        ReadBufferFromString in(valid_until_str);
+
+        if (context)
+        {
+            const auto & time_zone = DateLUT::instance("");
+            const auto & utc_time_zone = DateLUT::instance("UTC");
+
+            parseDateTimeBestEffort(time, in, time_zone, utc_time_zone);
+        }
+        else
+        {
+            readDateTimeText(time, in);
+        }
+
+        return time;
+    }
+}
diff --git a/src/Interpreters/Access/getValidUntilFromAST.h b/src/Interpreters/Access/getValidUntilFromAST.h
new file mode 100644
index 00000000000..ab0c6c8c9b6
--- /dev/null
+++ b/src/Interpreters/Access/getValidUntilFromAST.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include <Parsers/IAST.h>
+#include <Interpreters/Context_fwd.h>
+
+namespace DB
+{
+    time_t getValidUntilFromAST(ASTPtr valid_until, ContextPtr context);
+}