diff --git a/src/Functions/FunctionsConversion.h b/src/Functions/FunctionsConversion.h
index c34cd3ac875..55003044ff5 100644
--- a/src/Functions/FunctionsConversion.h
+++ b/src/Functions/FunctionsConversion.h
@@ -377,7 +377,7 @@ struct ToDateTransform32Or64
     static NO_SANITIZE_UNDEFINED ToType execute(const FromType & from, const DateLUTImpl & time_zone)
     {
         // since converting to Date, no need in values outside of default LUT range.
-        return (from < DATE_LUT_MAX_DAY_NUM)
+        return (from <= DATE_LUT_MAX_DAY_NUM)
             ? from
             : time_zone.toDayNum(std::min(time_t(from), time_t(0xFFFFFFFF)));
     }
@@ -394,7 +394,7 @@ struct ToDateTransform32Or64Signed
         /// The function should be monotonic (better for query optimizations), so we saturate instead of overflow.
         if (from < 0)
             return 0;
-        return (from < DATE_LUT_MAX_DAY_NUM)
+        return (from <= DATE_LUT_MAX_DAY_NUM)
             ? static_cast<ToType>(from)
             : time_zone.toDayNum(std::min(time_t(from), time_t(0xFFFFFFFF)));
     }
diff --git a/tests/queries/0_stateless/02540_date_column_consistent_insert_behaviour.reference b/tests/queries/0_stateless/02540_date_column_consistent_insert_behaviour.reference
new file mode 100644
index 00000000000..276c1456af6
--- /dev/null
+++ b/tests/queries/0_stateless/02540_date_column_consistent_insert_behaviour.reference
@@ -0,0 +1,27 @@
+2149-06-06	65535
+2149-06-06	toUInt16(65535)
+2149-06-06	toInt32(65535)
+2149-06-06	toUInt32(65535)
+2149-06-06	toDate(65535)
+2149-06-06	CAST(65535 as UInt16)
+2149-06-06	CAST(65535 as Int32)
+2149-06-06	CAST(65535 as UInt32)
+2149-06-06	CAST(65535 as Date)
+2149-06-05	65534
+2149-06-05	toUInt16(65534)
+2149-06-05	toInt32(65534)
+2149-06-05	toUInt32(65534)
+2149-06-05	toDate(65534)
+2149-06-05	CAST(65534 as UInt16)
+2149-06-05	CAST(65534 as Int32)
+2149-06-05	CAST(65534 as UInt32)
+2149-06-05	CAST(65534 as Date)
+1970-01-01	65536
+1970-01-01	toUInt16(65536)
+1970-01-01	toInt32(65536)
+1970-01-01	toUInt32(65536)
+1970-01-01	toDate(65536)
+1970-01-01	CAST(65536 as UInt16)
+1970-01-01	CAST(65536 as Int32)
+1970-01-01	CAST(65536 as UInt32)
+1970-01-01	CAST(65536 as Date)
diff --git a/tests/queries/0_stateless/02540_date_column_consistent_insert_behaviour.sql b/tests/queries/0_stateless/02540_date_column_consistent_insert_behaviour.sql
new file mode 100644
index 00000000000..20614f648ab
--- /dev/null
+++ b/tests/queries/0_stateless/02540_date_column_consistent_insert_behaviour.sql
@@ -0,0 +1,72 @@
+DROP TABLE IF EXISTS 02540_date;
+CREATE TABLE 02540_date (txt String, x Date) engine=Memory;
+
+-- Date: Supported range of values: [1970-01-01, 2149-06-06].
+--                                  ^----closed interval---^
+
+INSERT INTO 02540_date VALUES('65535', 65535);
+INSERT INTO 02540_date VALUES('toUInt16(65535)', toUInt16(65535)); -- #43370 weird one -> used to be 1970-01-01
+INSERT INTO 02540_date VALUES('toInt32(65535)', toInt32(65535));
+INSERT INTO 02540_date VALUES('toUInt32(65535)', toUInt32(65535));
+INSERT INTO 02540_date VALUES('toDate(65535)', toDate(65535));
+
+INSERT INTO 02540_date VALUES('CAST(65535 as UInt16)', CAST(65535 as UInt16));
+INSERT INTO 02540_date VALUES('CAST(65535 as Int32)', CAST(65535 as Int32));
+INSERT INTO 02540_date VALUES('CAST(65535 as UInt32)', CAST(65535 as UInt32));
+INSERT INTO 02540_date VALUES('CAST(65535 as Date)', CAST(65535 as Date));
+
+INSERT INTO 02540_date VALUES('65534', 65534);
+INSERT INTO 02540_date VALUES('toUInt16(65534)', toUInt16(65534));
+INSERT INTO 02540_date VALUES('toInt32(65534)', toInt32(65534));
+INSERT INTO 02540_date VALUES('toUInt32(65534)', toUInt32(65534));
+INSERT INTO 02540_date VALUES('toDate(65534)', toDate(65534));
+
+INSERT INTO 02540_date VALUES('CAST(65534 as UInt16)', CAST(65534 as UInt16));
+INSERT INTO 02540_date VALUES('CAST(65534 as Int32)', CAST(65534 as Int32));
+INSERT INTO 02540_date VALUES('CAST(65534 as UInt32)', CAST(65534 as UInt32));
+INSERT INTO 02540_date VALUES('CAST(65534 as Date)', CAST(65534 as Date));
+
+INSERT INTO 02540_date VALUES('65536', 65536);
+INSERT INTO 02540_date VALUES('toUInt16(65536)', toUInt16(65536));
+INSERT INTO 02540_date VALUES('toInt32(65536)', toInt32(65536));
+INSERT INTO 02540_date VALUES('toUInt32(65536)', toUInt32(65536));
+INSERT INTO 02540_date VALUES('toDate(65536)', toDate(65536));
+
+INSERT INTO 02540_date VALUES('CAST(65536 as UInt16)', CAST(65536 as UInt16));
+INSERT INTO 02540_date VALUES('CAST(65536 as Int32)', CAST(65536 as Int32));
+INSERT INTO 02540_date VALUES('CAST(65536 as UInt32)', CAST(65536 as UInt32));
+INSERT INTO 02540_date VALUES('CAST(65536 as Date)', CAST(65536 as Date));
+
+
+SELECT x, txt FROM 02540_date WHERE txt == '65535';
+SELECT x, txt FROM 02540_date WHERE txt == 'toUInt16(65535)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toInt32(65535)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toUInt32(65535)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toDate(65535)';
+
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65535 as UInt16)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65535 as Int32)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65535 as UInt32)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65535 as Date)';
+
+SELECT x, txt FROM 02540_date WHERE txt == '65534';
+SELECT x, txt FROM 02540_date WHERE txt == 'toUInt16(65534)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toInt32(65534)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toUInt32(65534)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toDate(65534)';
+
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65534 as UInt16)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65534 as Int32)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65534 as UInt32)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65534 as Date)';
+
+SELECT x, txt FROM 02540_date WHERE txt == '65536';
+SELECT x, txt FROM 02540_date WHERE txt == 'toUInt16(65536)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toInt32(65536)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toUInt32(65536)';
+SELECT x, txt FROM 02540_date WHERE txt == 'toDate(65536)';
+
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65536 as UInt16)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65536 as Int32)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65536 as UInt32)';
+SELECT x, txt FROM 02540_date WHERE txt == 'CAST(65536 as Date)';