diff --git a/oauth2/oauth2-client/src/test/java/org/springframework/security/oauth2/client/JdbcOAuth2AuthorizedClientServiceTests.java b/oauth2/oauth2-client/src/test/java/org/springframework/security/oauth2/client/JdbcOAuth2AuthorizedClientServiceTests.java
index 5863ebaeb1..78fe9c30fb 100644
--- a/oauth2/oauth2-client/src/test/java/org/springframework/security/oauth2/client/JdbcOAuth2AuthorizedClientServiceTests.java
+++ b/oauth2/oauth2-client/src/test/java/org/springframework/security/oauth2/client/JdbcOAuth2AuthorizedClientServiceTests.java
@@ -46,12 +46,14 @@ import java.sql.SQLException;
 import java.sql.Timestamp;
 import java.sql.Types;
 import java.time.Instant;
+import java.time.temporal.ChronoUnit;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.Assertions.within;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.mock;
@@ -154,11 +156,11 @@ public class JdbcOAuth2AuthorizedClientServiceTests {
 		assertThat(authorizedClient.getPrincipalName()).isEqualTo(expected.getPrincipalName());
 		assertThat(authorizedClient.getAccessToken().getTokenType()).isEqualTo(expected.getAccessToken().getTokenType());
 		assertThat(authorizedClient.getAccessToken().getTokenValue()).isEqualTo(expected.getAccessToken().getTokenValue());
-		assertThat(authorizedClient.getAccessToken().getIssuedAt()).isEqualTo(expected.getAccessToken().getIssuedAt());
-		assertThat(authorizedClient.getAccessToken().getExpiresAt()).isEqualTo(expected.getAccessToken().getExpiresAt());
+		assertThat(authorizedClient.getAccessToken().getIssuedAt()).isCloseTo(expected.getAccessToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
+		assertThat(authorizedClient.getAccessToken().getExpiresAt()).isCloseTo(expected.getAccessToken().getExpiresAt(), within(1, ChronoUnit.MILLIS));
 		assertThat(authorizedClient.getAccessToken().getScopes()).isEqualTo(expected.getAccessToken().getScopes());
 		assertThat(authorizedClient.getRefreshToken().getTokenValue()).isEqualTo(expected.getRefreshToken().getTokenValue());
-		assertThat(authorizedClient.getRefreshToken().getIssuedAt()).isEqualTo(expected.getRefreshToken().getIssuedAt());
+		assertThat(authorizedClient.getRefreshToken().getIssuedAt()).isCloseTo(expected.getRefreshToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
 	}
 
 	@Test
@@ -209,11 +211,11 @@ public class JdbcOAuth2AuthorizedClientServiceTests {
 		assertThat(authorizedClient.getPrincipalName()).isEqualTo(expected.getPrincipalName());
 		assertThat(authorizedClient.getAccessToken().getTokenType()).isEqualTo(expected.getAccessToken().getTokenType());
 		assertThat(authorizedClient.getAccessToken().getTokenValue()).isEqualTo(expected.getAccessToken().getTokenValue());
-		assertThat(authorizedClient.getAccessToken().getIssuedAt()).isEqualTo(expected.getAccessToken().getIssuedAt());
-		assertThat(authorizedClient.getAccessToken().getExpiresAt()).isEqualTo(expected.getAccessToken().getExpiresAt());
+		assertThat(authorizedClient.getAccessToken().getIssuedAt()).isCloseTo(expected.getAccessToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
+		assertThat(authorizedClient.getAccessToken().getExpiresAt()).isCloseTo(expected.getAccessToken().getExpiresAt(), within(1, ChronoUnit.MILLIS));
 		assertThat(authorizedClient.getAccessToken().getScopes()).isEqualTo(expected.getAccessToken().getScopes());
 		assertThat(authorizedClient.getRefreshToken().getTokenValue()).isEqualTo(expected.getRefreshToken().getTokenValue());
-		assertThat(authorizedClient.getRefreshToken().getIssuedAt()).isEqualTo(expected.getRefreshToken().getIssuedAt());
+		assertThat(authorizedClient.getRefreshToken().getIssuedAt()).isCloseTo(expected.getRefreshToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
 
 		// Test save/load of NOT NULL attributes only
 		principal = createPrincipal();
@@ -229,8 +231,8 @@ public class JdbcOAuth2AuthorizedClientServiceTests {
 		assertThat(authorizedClient.getPrincipalName()).isEqualTo(expected.getPrincipalName());
 		assertThat(authorizedClient.getAccessToken().getTokenType()).isEqualTo(expected.getAccessToken().getTokenType());
 		assertThat(authorizedClient.getAccessToken().getTokenValue()).isEqualTo(expected.getAccessToken().getTokenValue());
-		assertThat(authorizedClient.getAccessToken().getIssuedAt()).isEqualTo(expected.getAccessToken().getIssuedAt());
-		assertThat(authorizedClient.getAccessToken().getExpiresAt()).isEqualTo(expected.getAccessToken().getExpiresAt());
+		assertThat(authorizedClient.getAccessToken().getIssuedAt()).isCloseTo(expected.getAccessToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
+		assertThat(authorizedClient.getAccessToken().getExpiresAt()).isCloseTo(expected.getAccessToken().getExpiresAt(), within(1, ChronoUnit.MILLIS));
 		assertThat(authorizedClient.getAccessToken().getScopes()).isEmpty();
 		assertThat(authorizedClient.getRefreshToken()).isNull();
 	}
@@ -255,11 +257,11 @@ public class JdbcOAuth2AuthorizedClientServiceTests {
 		assertThat(savedClient.getPrincipalName()).isEqualTo(updatedClient.getPrincipalName());
 		assertThat(savedClient.getAccessToken().getTokenType()).isEqualTo(updatedClient.getAccessToken().getTokenType());
 		assertThat(savedClient.getAccessToken().getTokenValue()).isEqualTo(updatedClient.getAccessToken().getTokenValue());
-		assertThat(savedClient.getAccessToken().getIssuedAt()).isEqualTo(updatedClient.getAccessToken().getIssuedAt());
-		assertThat(savedClient.getAccessToken().getExpiresAt()).isEqualTo(updatedClient.getAccessToken().getExpiresAt());
+		assertThat(savedClient.getAccessToken().getIssuedAt()).isCloseTo(updatedClient.getAccessToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
+		assertThat(savedClient.getAccessToken().getExpiresAt()).isCloseTo(updatedClient.getAccessToken().getExpiresAt(), within(1, ChronoUnit.MILLIS));
 		assertThat(savedClient.getAccessToken().getScopes()).isEqualTo(updatedClient.getAccessToken().getScopes());
 		assertThat(savedClient.getRefreshToken().getTokenValue()).isEqualTo(updatedClient.getRefreshToken().getTokenValue());
-		assertThat(savedClient.getRefreshToken().getIssuedAt()).isEqualTo(updatedClient.getRefreshToken().getIssuedAt());
+		assertThat(savedClient.getRefreshToken().getIssuedAt()).isCloseTo(updatedClient.getRefreshToken().getIssuedAt(), within(1, ChronoUnit.MILLIS));
 	}
 
 	@Test