diff --git a/exposed-java-time/src/test/kotlin/org/jetbrains/exposed/v1/javatime/JavaTimeTests.kt b/exposed-java-time/src/test/kotlin/org/jetbrains/exposed/v1/javatime/JavaTimeTests.kt
index 051a27610a..495e755042 100644
--- a/exposed-java-time/src/test/kotlin/org/jetbrains/exposed/v1/javatime/JavaTimeTests.kt
+++ b/exposed-java-time/src/test/kotlin/org/jetbrains/exposed/v1/javatime/JavaTimeTests.kt
@@ -25,6 +25,7 @@ import org.jetbrains.exposed.v1.tests.shared.expectException
 import org.junit.jupiter.api.Assertions.fail
 import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertNull
 import java.math.BigDecimal
 import java.math.RoundingMode
 import java.time.*
@@ -544,20 +545,26 @@ class JavaTimeTests : DatabaseTestsBase() {
         val defaultDateTimes = listOf(LocalDateTime.now().asJdk8())
         val tester = object : Table("array_tester") {
             val dates = array("dates", JavaLocalDateColumnType()).default(defaultDates)
+            val optDates = array("opt_dates", JavaLocalDateColumnType()).nullable()
             val datetimes = array("datetimes", JavaLocalDateTimeColumnType()).default(defaultDateTimes)
+            val optDatetimes = array("opt_datetimes", JavaLocalDateTimeColumnType()).nullable()
         }
 
         withTables(excludeSettings = TestDB.entries - TestDB.POSTGRESQL - TestDB.H2_V2, tester) {
             tester.insert { }
             val result1 = tester.selectAll().single()
             assertEqualLists(result1[tester.dates], defaultDates)
+            assertNull(result1[tester.optDates])
             assertEqualLists(result1[tester.datetimes], defaultDateTimes)
+            assertNull(result1[tester.optDatetimes])
 
             val datesInput = List(3) { LocalDate.of(2020 + it, 5, 4) }
             val datetimeInput = List(3) { LocalDateTime.of(2020 + it, 5, 4, 9, 9, 9) }
             tester.insert {
                 it[dates] = datesInput
+                it[optDates] = null
                 it[datetimes] = datetimeInput
+                it[optDatetimes] = null
             }
 
             val lastDate = tester.dates[3]
diff --git a/exposed-jodatime/src/test/kotlin/org/jetbrains/exposed/v1/jodatime/JodaTimeTests.kt b/exposed-jodatime/src/test/kotlin/org/jetbrains/exposed/v1/jodatime/JodaTimeTests.kt
index 4ade451426..cfb3beea79 100644
--- a/exposed-jodatime/src/test/kotlin/org/jetbrains/exposed/v1/jodatime/JodaTimeTests.kt
+++ b/exposed-jodatime/src/test/kotlin/org/jetbrains/exposed/v1/jodatime/JodaTimeTests.kt
@@ -37,6 +37,7 @@ import org.joda.time.DateTime
 import org.joda.time.DateTimeZone
 import org.joda.time.LocalTime
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertNull
 import kotlin.test.assertEquals
 
 class JodaTimeTests : DatabaseTestsBase() {
@@ -418,20 +419,26 @@ class JodaTimeTests : DatabaseTestsBase() {
         val defaultDateTimes = listOf(DateTime.now())
         val tester = object : Table("array_tester") {
             val dates = array("dates", JodaLocalDateColumnType()).default(defaultDates)
+            val optDates = array("opt_dates", JodaLocalDateColumnType()).nullable()
             val datetimes = array("datetimes", JodaLocalDateTimeColumnType()).default(defaultDateTimes)
+            val optDatetimes = array("opt_datetimes", JodaLocalDateTimeColumnType()).nullable()
         }
 
         withTables(excludeSettings = TestDB.ALL - TestDB.POSTGRESQL - TestDB.H2_V2 - TestDB.H2_V2_PSQL, tester) {
             tester.insert { }
             val result1 = tester.selectAll().single()
             assertEqualLists(result1[tester.dates], defaultDates)
+            assertNull(result1[tester.optDates])
             assertEqualLists(result1[tester.datetimes], defaultDateTimes)
+            assertNull(result1[tester.optDatetimes])
 
             val datesInput = List(3) { DateTime.parse("${2020 + it}-5-4") }
             val datetimeInput = List(3) { DateTime(2020 + it, 5, 4, 9, 9, 9) }
             tester.insert {
                 it[dates] = datesInput
+                it[optDates] = null
                 it[datetimes] = datetimeInput
+                it[optDatetimes] = null
             }
 
             val lastDate = tester.dates[3]
diff --git a/exposed-kotlin-datetime/src/test/kotlin/org/jetbrains/exposed/v1/datetime/KotlinTimeTests.kt b/exposed-kotlin-datetime/src/test/kotlin/org/jetbrains/exposed/v1/datetime/KotlinTimeTests.kt
index 46b24fbd49..4c4709faff 100644
--- a/exposed-kotlin-datetime/src/test/kotlin/org/jetbrains/exposed/v1/datetime/KotlinTimeTests.kt
+++ b/exposed-kotlin-datetime/src/test/kotlin/org/jetbrains/exposed/v1/datetime/KotlinTimeTests.kt
@@ -19,6 +19,7 @@ import org.jetbrains.exposed.v1.tests.shared.assertTrue
 import org.jetbrains.exposed.v1.tests.shared.expectException
 import org.junit.jupiter.api.Assertions.fail
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertNull
 import java.math.BigDecimal
 import java.math.RoundingMode
 import java.time.OffsetDateTime
@@ -604,20 +605,26 @@ class KotlinTimeTests : DatabaseTestsBase() {
         val defaultDateTimes = listOf(now())
         val tester = object : Table("array_tester") {
             val dates = array("dates", KotlinLocalDateColumnType()).default(defaultDates)
+            val optDates = array("opt_dates", KotlinLocalDateColumnType()).nullable()
             val datetimes = array("datetimes", KotlinLocalDateTimeColumnType()).default(defaultDateTimes)
+            val optDatetimes = array("opt_datetimes", KotlinLocalDateTimeColumnType()).nullable()
         }
 
         withTables(excludeSettings = TestDB.entries - TestDB.POSTGRESQL - TestDB.H2_V2, tester) {
             tester.insert { }
             val result1 = tester.selectAll().single()
             assertEqualLists(result1[tester.dates], defaultDates)
+            assertNull(result1[tester.optDates])
             assertEqualLists(result1[tester.datetimes], defaultDateTimes)
+            assertNull(result1[tester.optDatetimes])
 
             val datesInput = List(3) { LocalDate(2020 + it, 5, 4) }
             val datetimeInput = List(3) { LocalDateTime(2020 + it, 5, 4, 9, 9, 9) }
             tester.insert {
                 it[dates] = datesInput
+                it[optDates] = null
                 it[datetimes] = datetimeInput
+                it[optDatetimes] = null
             }
 
             val lastDate = tester.dates[3]
diff --git a/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/javatime/JavaTimeTests.kt b/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/javatime/JavaTimeTests.kt
index daa5ea0d6f..1574028e1b 100644
--- a/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/javatime/JavaTimeTests.kt
+++ b/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/javatime/JavaTimeTests.kt
@@ -29,6 +29,7 @@ import org.jetbrains.exposed.v1.r2dbc.tests.shared.assertEquals
 import org.jetbrains.exposed.v1.r2dbc.tests.shared.assertTrue
 import org.jetbrains.exposed.v1.r2dbc.tests.shared.expectException
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertNull
 import org.junit.jupiter.api.fail
 import java.math.BigDecimal
 import java.math.RoundingMode
@@ -398,20 +399,26 @@ class JavaTimeTests : R2dbcDatabaseTestsBase() {
         val defaultDateTimes = listOf(LocalDateTime.now().asJdk8())
         val tester = object : Table("array_tester") {
             val dates = array("dates", JavaLocalDateColumnType()).default(defaultDates)
+            val optDates = array("opt_dates", JavaLocalDateColumnType()).nullable()
             val datetimes = array("datetimes", JavaLocalDateTimeColumnType()).default(defaultDateTimes)
+            val optDatetimes = array("opt_datetimes", JavaLocalDateTimeColumnType()).nullable()
         }
 
         withTables(excludeSettings = TestDB.entries - TestDB.POSTGRESQL - TestDB.H2_V2, tester) {
             tester.insert { }
             val result1 = tester.selectAll().single()
             assertEqualLists(result1[tester.dates], defaultDates)
+            assertNull(result1[tester.optDates])
             assertEqualLists(result1[tester.datetimes], defaultDateTimes)
+            assertNull(result1[tester.optDatetimes])
 
             val datesInput = List(3) { LocalDate.of(2020 + it, 5, 4) }
             val datetimeInput = List(3) { LocalDateTime.of(2020 + it, 5, 4, 9, 9, 9) }
             tester.insert {
                 it[dates] = datesInput
+                it[optDates] = null
                 it[datetimes] = datetimeInput
+                it[optDatetimes] = null
             }
 
             val lastDate = tester.dates[3]
diff --git a/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/jodatime/JodaTimeTests.kt b/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/jodatime/JodaTimeTests.kt
index b7d6459684..32d872063b 100644
--- a/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/jodatime/JodaTimeTests.kt
+++ b/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/jodatime/JodaTimeTests.kt
@@ -41,6 +41,7 @@ import org.joda.time.DateTime
 import org.joda.time.DateTimeZone
 import org.joda.time.LocalTime
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertNull
 import kotlin.test.assertEquals
 
 class JodaTimeTests : R2dbcDatabaseTestsBase() {
@@ -322,20 +323,26 @@ class JodaTimeTests : R2dbcDatabaseTestsBase() {
         val defaultDateTimes = listOf(DateTime.now())
         val tester = object : Table("array_tester") {
             val dates = array("dates", JodaLocalDateColumnType()).default(defaultDates)
+            val optDates = array("opt_dates", JodaLocalDateColumnType()).nullable()
             val datetimes = array("datetimes", JodaLocalDateTimeColumnType()).default(defaultDateTimes)
+            val optDatetimes = array("opt_datetimes", JodaLocalDateTimeColumnType()).nullable()
         }
 
         withTables(excludeSettings = TestDB.ALL - TestDB.POSTGRESQL - TestDB.H2_V2 - TestDB.H2_V2_PSQL, tester) {
             tester.insert { }
             val result1 = tester.selectAll().single()
             assertEqualLists(result1[tester.dates], defaultDates)
+            assertNull(result1[tester.optDates])
             assertEqualLists(result1[tester.datetimes], defaultDateTimes)
+            assertNull(result1[tester.optDatetimes])
 
             val datesInput = List(3) { DateTime.parse("${2020 + it}-5-4") }
             val datetimeInput = List(3) { DateTime(2020 + it, 5, 4, 9, 9, 9) }
             tester.insert {
                 it[dates] = datesInput
+                it[optDates] = null
                 it[datetimes] = datetimeInput
+                it[optDatetimes] = null
             }
 
             val lastDate = tester.dates[3]
diff --git a/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/kotlindatetime/KotlinTimeTests.kt b/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/kotlindatetime/KotlinTimeTests.kt
index f3bc9b49ff..dbded7b60c 100644
--- a/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/kotlindatetime/KotlinTimeTests.kt
+++ b/exposed-r2dbc-tests/src/test/kotlin/org/jetbrains/exposed/v1/r2dbc/sql/tests/kotlindatetime/KotlinTimeTests.kt
@@ -25,6 +25,7 @@ import org.jetbrains.exposed.v1.r2dbc.tests.shared.assertTrue
 import org.jetbrains.exposed.v1.r2dbc.tests.shared.expectException
 import org.junit.jupiter.api.Assertions.fail
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertNull
 import java.math.BigDecimal
 import java.math.RoundingMode
 import java.time.OffsetDateTime
@@ -445,20 +446,26 @@ class KotlinTimeTests : R2dbcDatabaseTestsBase() {
         val defaultDateTimes = listOf(now())
         val tester = object : Table("array_tester") {
             val dates = array("dates", KotlinLocalDateColumnType()).default(defaultDates)
+            val optDates = array("opt_dates", KotlinLocalDateColumnType()).nullable()
             val datetimes = array("datetimes", KotlinLocalDateTimeColumnType()).default(defaultDateTimes)
+            val optDatetimes = array("opt_datetimes", KotlinLocalDateTimeColumnType()).nullable()
         }
 
         withTables(excludeSettings = TestDB.entries - TestDB.POSTGRESQL - TestDB.H2_V2, tester) {
             tester.insert { }
             val result1 = tester.selectAll().single()
             assertEqualLists(result1[tester.dates], defaultDates)
+            assertNull(result1[tester.optDates])
             assertEqualLists(result1[tester.datetimes], defaultDateTimes)
+            assertNull(result1[tester.optDatetimes])
 
             val datesInput = List(3) { LocalDate(2020 + it, 5, 4) }
             val datetimeInput = List(3) { LocalDateTime(2020 + it, 5, 4, 9, 9, 9) }
             tester.insert {
                 it[dates] = datesInput
+                it[optDates] = null
                 it[datetimes] = datetimeInput
+                it[optDatetimes] = null
             }
 
             val lastDate = tester.dates[3]
diff --git a/exposed-r2dbc/src/main/kotlin/org/jetbrains/exposed/v1/r2dbc/mappers/ArrayTypeMapper.kt b/exposed-r2dbc/src/main/kotlin/org/jetbrains/exposed/v1/r2dbc/mappers/ArrayTypeMapper.kt
index 03651c41af..d26d4cf9c7 100644
--- a/exposed-r2dbc/src/main/kotlin/org/jetbrains/exposed/v1/r2dbc/mappers/ArrayTypeMapper.kt
+++ b/exposed-r2dbc/src/main/kotlin/org/jetbrains/exposed/v1/r2dbc/mappers/ArrayTypeMapper.kt
@@ -35,7 +35,7 @@ class ArrayTypeMapper : TypeMapper {
         if (columnType !is ArrayColumnType<*, *>) return false
 
         if (value == null) {
-            statement.bindNull(index - 1, columnType.arrayDeclaration())
+            statement.bindNull(index - 1, columnType.arrayDeclaration(dialect))
             return true
         }
 
@@ -201,7 +201,7 @@ private fun java.sql.Timestamp.toLocalDateTime(): LocalDateTime = toInstant().at
  * Extension function to get the Java class type for an array column type.
  */
 @OptIn(ExperimentalUuidApi::class)
-private fun ArrayColumnType<*, *>.arrayDeclaration(): Class<out Array<out Any>> = when (delegate) {
+private fun ArrayColumnType<*, *>.arrayDeclaration(dialect: DatabaseDialect): Class<out Array<out Any>> = when (delegate) {
     is ByteColumnType -> Array<Byte>::class.java
     is UByteColumnType -> Array<UByte>::class.java
     is ShortColumnType -> Array<Short>::class.java
@@ -220,11 +220,13 @@ private fun ArrayColumnType<*, *>.arrayDeclaration(): Class<out Array<out Any>>
     is CharacterColumnType -> Array<Char>::class.java
     is BooleanColumnType -> Array<Boolean>::class.java
     is IDateColumnType -> {
+        val hasTimePart = (delegate as IDateColumnType).hasTimePart
         // For date/time types, use Date or Timestamp arrays depending on whether the column type has a time part
-        if ((delegate as IDateColumnType).hasTimePart) {
-            Array<java.sql.Timestamp>::class.java
-        } else {
-            Array<java.sql.Date>::class.java
+        when {
+            hasTimePart && dialect is PostgreSQLDialect -> Array<LocalDateTime>::class.java
+            hasTimePart -> Array<java.sql.Timestamp>::class.java
+            dialect is PostgreSQLDialect -> Array<LocalDate>::class.java
+            else -> Array<java.sql.Date>::class.java
         }
     }
     else -> Array<Any>::class.java