diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/AutoZonedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/AutoZonedTest.java
index fab1d95e95..421fd7deb3 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/AutoZonedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/AutoZonedTest.java
@@ -1,8 +1,11 @@
 package org.hibernate.orm.test.timezones;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.Id;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoField;
+
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.SybaseDialect;
@@ -15,11 +18,9 @@ import org.hibernate.testing.orm.junit.SessionFactoryScope;
 import org.hibernate.testing.orm.junit.Setting;
 import org.junit.jupiter.api.Test;
 
-import java.time.OffsetDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
-import java.time.temporal.ChronoUnit;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -29,8 +30,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 public class AutoZonedTest {
 
 	@Test void test(SessionFactoryScope scope) {
-		ZonedDateTime nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
-		OffsetDateTime nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		final ZonedDateTime nowZoned;
+		final OffsetDateTime nowOffset;
+		if ( scope.getSessionFactory().getJdbcServices().getDialect() instanceof SybaseDialect ) {
+			// Sybase has 1/300th sec precision
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+		}
+		else {
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		}
 		long id = scope.fromTransaction( s-> {
 			Zoned z = new Zoned();
 			z.zonedDateTime = nowZoned;
@@ -41,21 +53,14 @@ public class AutoZonedTest {
 		scope.inSession( s -> {
 			Zoned z = s.find(Zoned.class, id);
 			final Dialect dialect = scope.getSessionFactory().getJdbcServices().getDialect();
-			if ( dialect instanceof SybaseDialect ) {
-				// Sybase with jTDS driver has 1/300th sec precision
-				assertEquals( nowZoned.toInstant().truncatedTo(ChronoUnit.SECONDS), z.zonedDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-				assertEquals( nowOffset.toInstant().truncatedTo(ChronoUnit.SECONDS), z.offsetDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-			}
-			else {
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
-				);
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
-				);
-			}
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
+			);
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
+			);
 			assertEquals( nowZoned.toOffsetDateTime().getOffset(), z.zonedDateTime.toOffsetDateTime().getOffset() );
 			assertEquals( nowOffset.getOffset(), z.offsetDateTime.getOffset() );
 		});
diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/ColumnZonedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/ColumnZonedTest.java
index de44584745..dbbcb3a62e 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/ColumnZonedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/ColumnZonedTest.java
@@ -1,8 +1,11 @@
 package org.hibernate.orm.test.timezones;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.Id;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoField;
+
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.SybaseDialect;
@@ -15,11 +18,9 @@ import org.hibernate.testing.orm.junit.SessionFactoryScope;
 import org.hibernate.testing.orm.junit.Setting;
 import org.junit.jupiter.api.Test;
 
-import java.time.OffsetDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
-import java.time.temporal.ChronoUnit;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -29,8 +30,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 public class ColumnZonedTest {
 
 	@Test void test(SessionFactoryScope scope) {
-		ZonedDateTime nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
-		OffsetDateTime nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		final ZonedDateTime nowZoned;
+		final OffsetDateTime nowOffset;
+		if ( scope.getSessionFactory().getJdbcServices().getDialect() instanceof SybaseDialect ) {
+			// Sybase has 1/300th sec precision
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+		}
+		else {
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		}
 		long id = scope.fromTransaction( s-> {
 			Zoned z = new Zoned();
 			z.zonedDateTime = nowZoned;
@@ -41,21 +53,14 @@ public class ColumnZonedTest {
 		scope.inSession( s -> {
 			Zoned z = s.find(Zoned.class, id);
 			final Dialect dialect = scope.getSessionFactory().getJdbcServices().getDialect();
-			if ( dialect instanceof SybaseDialect) {
-				// Sybase with jTDS driver has 1/300th sec precision
-				assertEquals( nowZoned.toInstant().truncatedTo(ChronoUnit.SECONDS), z.zonedDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-				assertEquals( nowOffset.toInstant().truncatedTo(ChronoUnit.SECONDS), z.offsetDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-			}
-			else {
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
-				);
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
-				);
-			}
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
+			);
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
+			);
 			assertEquals( nowZoned.toOffsetDateTime().getOffset(), z.zonedDateTime.toOffsetDateTime().getOffset() );
 			assertEquals( nowOffset.getOffset(), z.offsetDateTime.getOffset() );
 		});
diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/DefaultZonedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/DefaultZonedTest.java
index 6b8fa956d5..0bb8a1f3b2 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/DefaultZonedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/DefaultZonedTest.java
@@ -1,8 +1,10 @@
 package org.hibernate.orm.test.timezones;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.Id;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoField;
 
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.SybaseDialect;
@@ -14,11 +16,9 @@ import org.hibernate.testing.orm.junit.SessionFactory;
 import org.hibernate.testing.orm.junit.SessionFactoryScope;
 import org.junit.jupiter.api.Test;
 
-import java.time.OffsetDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
-import java.time.temporal.ChronoUnit;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -27,8 +27,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 public class DefaultZonedTest {
 
 	@Test void test(SessionFactoryScope scope) {
-		ZonedDateTime nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
-		OffsetDateTime nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		final ZonedDateTime nowZoned;
+		final OffsetDateTime nowOffset;
+		if ( scope.getSessionFactory().getJdbcServices().getDialect() instanceof SybaseDialect ) {
+			// Sybase has 1/300th sec precision
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+		}
+		else {
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		}
 		long id = scope.fromTransaction( s-> {
 			Zoned z = new Zoned();
 			z.zonedDateTime = nowZoned;
@@ -39,21 +50,14 @@ public class DefaultZonedTest {
 		scope.inSession( s -> {
 			Zoned z = s.find(Zoned.class, id);
 			final Dialect dialect = scope.getSessionFactory().getJdbcServices().getDialect();
-			if ( dialect instanceof SybaseDialect) {
-				// Sybase with jTDS driver has 1/300th sec precision
-				assertEquals( nowZoned.toInstant().truncatedTo(ChronoUnit.SECONDS), z.zonedDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-				assertEquals( nowOffset.toInstant().truncatedTo(ChronoUnit.SECONDS), z.offsetDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-			}
-			else {
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
-				);
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
-				);
-			}
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
+			);
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
+			);
 			if ( dialect.getTimeZoneSupport() == TimeZoneSupport.NATIVE ) {
 				assertEquals( nowZoned.toOffsetDateTime().getOffset(), z.zonedDateTime.toOffsetDateTime().getOffset() );
 				assertEquals( nowOffset.getOffset(), z.offsetDateTime.getOffset() );
diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/JDBCTimeZoneZonedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/JDBCTimeZoneZonedTest.java
index ed2bae14da..f77bc9ced6 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/JDBCTimeZoneZonedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/JDBCTimeZoneZonedTest.java
@@ -1,8 +1,12 @@
 package org.hibernate.orm.test.timezones;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.Id;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoField;
+
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.SybaseDialect;
@@ -15,12 +19,9 @@ import org.hibernate.testing.orm.junit.SessionFactoryScope;
 import org.hibernate.testing.orm.junit.Setting;
 import org.junit.jupiter.api.Test;
 
-import java.time.Instant;
-import java.time.OffsetDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
-import java.time.temporal.ChronoUnit;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -31,8 +32,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 public class JDBCTimeZoneZonedTest {
 
 	@Test void test(SessionFactoryScope scope) {
-		ZonedDateTime nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
-		OffsetDateTime nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours( 3) );
+		final ZonedDateTime nowZoned;
+		final OffsetDateTime nowOffset;
+		if ( scope.getSessionFactory().getJdbcServices().getDialect() instanceof SybaseDialect ) {
+			// Sybase has 1/300th sec precision
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+		}
+		else {
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		}
 		long id = scope.fromTransaction( s-> {
 			Zoned z = new Zoned();
 			z.zonedDateTime = nowZoned;
@@ -45,21 +57,14 @@ public class JDBCTimeZoneZonedTest {
 			ZoneId systemZone = ZoneId.systemDefault();
 			ZoneOffset systemOffset = systemZone.getRules().getOffset( Instant.now() );
 			final Dialect dialect = scope.getSessionFactory().getJdbcServices().getDialect();
-			if ( dialect instanceof SybaseDialect) {
-				// Sybase with jTDS driver has 1/300th sec precision
-				assertEquals( nowZoned.toInstant().truncatedTo(ChronoUnit.SECONDS), z.zonedDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS));
-				assertEquals( nowOffset.toInstant().truncatedTo(ChronoUnit.SECONDS), z.offsetDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS));
-			}
-			else {
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
-				);
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
-				);
-			}
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
+			);
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
+			);
 			assertEquals( systemZone, z.zonedDateTime.getZone() );
 			assertEquals( systemOffset, z.offsetDateTime.getOffset() );
 		});
diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/PassThruZonedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/PassThruZonedTest.java
index 85f897adad..8404eb25e4 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/PassThruZonedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/PassThruZonedTest.java
@@ -1,8 +1,12 @@
 package org.hibernate.orm.test.timezones;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.Id;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoField;
+
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.SybaseDialect;
@@ -15,12 +19,9 @@ import org.hibernate.testing.orm.junit.SessionFactoryScope;
 import org.hibernate.testing.orm.junit.Setting;
 import org.junit.jupiter.api.Test;
 
-import java.time.Instant;
-import java.time.OffsetDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
-import java.time.temporal.ChronoUnit;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -30,8 +31,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 public class PassThruZonedTest {
 
 	@Test void test(SessionFactoryScope scope) {
-		ZonedDateTime nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
-		OffsetDateTime nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours( 3) );
+		final ZonedDateTime nowZoned;
+		final OffsetDateTime nowOffset;
+		if ( scope.getSessionFactory().getJdbcServices().getDialect() instanceof SybaseDialect ) {
+			// Sybase has 1/300th sec precision
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+		}
+		else {
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		}
 		long id = scope.fromTransaction( s-> {
 			Zoned z = new Zoned();
 			z.zonedDateTime = nowZoned;
@@ -44,21 +56,14 @@ public class PassThruZonedTest {
 			ZoneId systemZone = ZoneId.systemDefault();
 			ZoneOffset systemOffset = systemZone.getRules().getOffset( Instant.now() );
 			final Dialect dialect = scope.getSessionFactory().getJdbcServices().getDialect();
-			if ( dialect instanceof SybaseDialect) {
-				// Sybase with jTDS driver has 1/300th sec precision
-				assertEquals( nowZoned.toInstant().truncatedTo(ChronoUnit.SECONDS), z.zonedDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS));
-				assertEquals( nowOffset.toInstant().truncatedTo(ChronoUnit.SECONDS), z.offsetDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS));
-			}
-			else {
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
-				);
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
-				);
-			}
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
+			);
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
+			);
 			assertEquals( systemZone, z.zonedDateTime.getZone() );
 			assertEquals( systemOffset, z.offsetDateTime.getOffset() );
 		});
diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/UTCNormalizedZonedTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/UTCNormalizedZonedTest.java
index 00306c9622..cbab481e0f 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/UTCNormalizedZonedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/timezones/UTCNormalizedZonedTest.java
@@ -1,8 +1,11 @@
 package org.hibernate.orm.test.timezones;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.Id;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoField;
+
 import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.SybaseDialect;
@@ -15,11 +18,9 @@ import org.hibernate.testing.orm.junit.SessionFactoryScope;
 import org.hibernate.testing.orm.junit.Setting;
 import org.junit.jupiter.api.Test;
 
-import java.time.OffsetDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
-import java.time.temporal.ChronoUnit;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -29,8 +30,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 public class UTCNormalizedZonedTest {
 
 	@Test void test(SessionFactoryScope scope) {
-		ZonedDateTime nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
-		OffsetDateTime nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		final ZonedDateTime nowZoned;
+		final OffsetDateTime nowOffset;
+		if ( scope.getSessionFactory().getJdbcServices().getDialect() instanceof SybaseDialect ) {
+			// Sybase has 1/300th sec precision
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) )
+					.with( ChronoField.NANO_OF_SECOND, 0L );
+		}
+		else {
+			nowZoned = ZonedDateTime.now().withZoneSameInstant( ZoneId.of("CET") );
+			nowOffset = OffsetDateTime.now().withOffsetSameInstant( ZoneOffset.ofHours(3) );
+		}
 		long id = scope.fromTransaction( s-> {
 			Zoned z = new Zoned();
 			z.zonedDateTime = nowZoned;
@@ -41,21 +53,14 @@ public class UTCNormalizedZonedTest {
 		scope.inSession( s-> {
 			Zoned z = s.find(Zoned.class, id);
 			final Dialect dialect = scope.getSessionFactory().getJdbcServices().getDialect();
-			if ( dialect instanceof SybaseDialect) {
-				// Sybase with jTDS driver has 1/300th sec precision
-				assertEquals( nowZoned.toInstant().truncatedTo(ChronoUnit.SECONDS), z.zonedDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-				assertEquals( nowOffset.toInstant().truncatedTo(ChronoUnit.SECONDS), z.offsetDateTime.toInstant().truncatedTo(ChronoUnit.SECONDS) );
-			}
-			else {
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
-				);
-				assertEquals(
-						DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
-						DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
-				);
-			}
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowZoned.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.zonedDateTime.toInstant(), dialect )
+			);
+			assertEquals(
+					DateTimeUtils.roundToDefaultPrecision( nowOffset.toInstant(), dialect ),
+					DateTimeUtils.roundToDefaultPrecision( z.offsetDateTime.toInstant(), dialect )
+			);
 			assertEquals( ZoneId.of("Z"), z.zonedDateTime.getZone() );
 			assertEquals( ZoneOffset.ofHours(0), z.offsetDateTime.getOffset() );
 		});