diff --git a/src/IO/ReadHelpers.h b/src/IO/ReadHelpers.h
index 48c291d8fcc..e68da3a1c7d 100644
--- a/src/IO/ReadHelpers.h
+++ b/src/IO/ReadHelpers.h
@@ -867,7 +867,8 @@ inline ReturnType readDateTimeTextImpl(time_t & datetime, ReadBuffer & buf, cons
             UInt8 minute = 0;
             UInt8 second = 0;
             ///simply determine whether it is YYYY-MM-DD hh:mm:ss or YYYY-MM-DD by the content of the tenth character in an optimistic scenario
-            if (s[10] == ' ')
+            bool dt_long = (s[10] == ' ' || s[10] == 'T');
+            if (dt_long)
             {
                 hour = (s[11] - '0') * 10 + (s[12] - '0');
                 minute = (s[14] - '0') * 10 + (s[15] - '0');
@@ -879,7 +880,7 @@ inline ReturnType readDateTimeTextImpl(time_t & datetime, ReadBuffer & buf, cons
             else
                 datetime = date_lut.makeDateTime(year, month, day, hour, minute, second);
 
-            if (s[10] == ' ')
+            if (dt_long)
                 buf.position() += DateTimeStringInputSize;
             else
                 buf.position() += DateStringInputSize;
diff --git a/tests/queries/0_stateless/02249_parse_date_time_basic.reference b/tests/queries/0_stateless/02249_parse_date_time_basic.reference
index d67e0ae15e0..027c72d802f 100644
--- a/tests/queries/0_stateless/02249_parse_date_time_basic.reference
+++ b/tests/queries/0_stateless/02249_parse_date_time_basic.reference
@@ -1,3 +1,5 @@
-2022-03-31 00:00:00	1
-2022-04-01 17:10:24	2
-2022-03-31 10:18:56	3
+2022-03-31T04:00:00Z	1
+2022-04-01T09:10:24Z	2
+2022-03-31T14:18:56Z	3
+2022-03-31T14:18:56Z	4
+2022-04-01T09:10:24Z	5
diff --git a/tests/queries/0_stateless/02249_parse_date_time_basic.sql b/tests/queries/0_stateless/02249_parse_date_time_basic.sql
index 2cea41874d5..cb443bbdd8e 100644
--- a/tests/queries/0_stateless/02249_parse_date_time_basic.sql
+++ b/tests/queries/0_stateless/02249_parse_date_time_basic.sql
@@ -1,6 +1,10 @@
+SET date_time_output_format='iso';
 drop table if exists t;
 CREATE TABLE t (a DateTime, b String, c String, d String, e Int32) ENGINE = Memory;
 INSERT INTO t(a, b, c, d ,e)  VALUES ('2022-03-31','','','',1);
 INSERT INTO t(a, b, c, d ,e)  VALUES (1648804224,'','','',2);
 INSERT INTO t(a, b, c, d ,e)  VALUES ('2022-03-31 10:18:56','','','',3);
-select a, e from t;
+INSERT INTO t(a, b, c, d ,e)  VALUES ('2022-03-31T10:18:56','','','',4);
+INSERT INTO t(a, b, c, d ,e)  VALUES ('1648804224','','','',5);
+select a, e from t order by e;
+drop table if exists t;