diff --git a/dbms/src/Functions/timeSlot.cpp b/dbms/src/Functions/timeSlot.cpp
index f9763997b92..c734bed8203 100644
--- a/dbms/src/Functions/timeSlot.cpp
+++ b/dbms/src/Functions/timeSlot.cpp
@@ -8,7 +8,7 @@
 namespace DB
 {
 
-using FunctionTimeSlot = FunctionDateOrDateTimeToSomething<DataTypeUInt32, TimeSlotImpl>;
+using FunctionTimeSlot = FunctionDateOrDateTimeToSomething<DataTypeDateTime, TimeSlotImpl>;
 
 void registerFunctionTimeSlot(FunctionFactory & factory)
 {
diff --git a/dbms/src/Functions/timeSlots.cpp b/dbms/src/Functions/timeSlots.cpp
index 16ade60cb50..07afc2894e1 100644
--- a/dbms/src/Functions/timeSlots.cpp
+++ b/dbms/src/Functions/timeSlots.cpp
@@ -121,17 +121,19 @@ public:
 
     size_t getNumberOfArguments() const override { return 2; }
 
-    DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
+    DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
     {
-        if (!WhichDataType(arguments[0]).isDateTime())
-            throw Exception("Illegal type " + arguments[0]->getName() + " of first argument of function " + getName() + ". Must be DateTime.",
+        if (!WhichDataType(arguments[0].type).isDateTime())
+            throw Exception("Illegal type " + arguments[0].type->getName() + " of first argument of function " + getName() + ". Must be DateTime.",
                 ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
 
-        if (!WhichDataType(arguments[1]).isUInt32())
-            throw Exception("Illegal type " + arguments[1]->getName() + " of second argument of function " + getName() + ". Must be UInt32.",
+        if (!WhichDataType(arguments[1].type).isUInt32())
+            throw Exception("Illegal type " + arguments[1].type->getName() + " of second argument of function " + getName() + ". Must be UInt32.",
                 ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
 
-        return std::make_shared<DataTypeArray>(std::make_shared<DataTypeDateTime>());
+        /// If time zone is specified for source data type, attach it to the resulting type.
+        /// Note that there is no explicit time zone argument for this function (we specify 2 as an argument number with explicit time zone).
+        return std::make_shared<DataTypeArray>(std::make_shared<DataTypeDateTime>(extractTimeZoneNameFromFunctionArguments(arguments, 2, 0)));
     }
 
     void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override
diff --git a/dbms/tests/queries/0_stateless/00734_timeslot.reference b/dbms/tests/queries/0_stateless/00734_timeslot.reference
new file mode 100644
index 00000000000..5acfa2b537c
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00734_timeslot.reference
@@ -0,0 +1,2 @@
+2000-01-02 03:00:00
+['2000-01-02 03:00:00','2000-01-02 03:30:00','2000-01-02 04:00:00','2000-01-02 04:30:00','2000-01-02 05:00:00','2000-01-02 05:30:00']
diff --git a/dbms/tests/queries/0_stateless/00734_timeslot.sql b/dbms/tests/queries/0_stateless/00734_timeslot.sql
new file mode 100644
index 00000000000..7362074ccaf
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00734_timeslot.sql
@@ -0,0 +1,2 @@
+SELECT timeSlot(toDateTime('2000-01-02 03:04:05', 'UTC'));
+SELECT timeSlots(toDateTime('2000-01-02 03:04:05', 'UTC'), toUInt32(10000));