diff --git a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginApiRequestHandler.kt b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginApiRequestHandler.kt
index ba5409bf..b84fb6e3 100644
--- a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginApiRequestHandler.kt
+++ b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginApiRequestHandler.kt
@@ -8,7 +8,6 @@ import com.auth0.auth0_flutter.request_handlers.MethodCallRequest
 import com.auth0.auth0_flutter.toMap
 import com.auth0.auth0_flutter.utils.assertHasProperties
 import io.flutter.plugin.common.MethodChannel
-import java.text.SimpleDateFormat
 import java.util.*
 
 private const val AUTH_LOGIN_METHOD = "auth#login"
@@ -54,10 +53,7 @@ class LoginApiRequestHandler : ApiRequestHandler {
 
             override fun onSuccess(credentials: Credentials) {
                 val scope = credentials.scope?.split(" ") ?: listOf()
-                val sdf =
-                    SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
-
-                val formattedDate = sdf.format(credentials.expiresAt)
+                val formattedDate = credentials.expiresAt.toInstant().toString()
                 result.success(
                     mapOf(
                         "accessToken" to credentials.accessToken,
diff --git a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginWithOtpApiRequestHandler.kt b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginWithOtpApiRequestHandler.kt
index c3c8f6a1..62e22668 100644
--- a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginWithOtpApiRequestHandler.kt
+++ b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/LoginWithOtpApiRequestHandler.kt
@@ -8,7 +8,6 @@ import com.auth0.auth0_flutter.request_handlers.MethodCallRequest
 import com.auth0.auth0_flutter.toMap
 import com.auth0.auth0_flutter.utils.assertHasProperties
 import io.flutter.plugin.common.MethodChannel
-import java.text.SimpleDateFormat
 import java.util.*
 
 private const val AUTH_LOGIN_OTP_METHOD = "auth#loginOtp"
@@ -42,10 +41,7 @@ class LoginWithOtpApiRequestHandler: ApiRequestHandler {
 
             override fun onSuccess(credentials: Credentials) {
                 val scope = credentials.scope?.split(" ") ?: listOf()
-                val sdf =
-                    SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
-
-                val formattedDate = sdf.format(credentials.expiresAt)
+                var formattedDate = credentials.expiresAt.toInstant().toString()
                 result.success(
                     mapOf(
                         "accessToken" to credentials.accessToken,
diff --git a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/RenewApiRequestHandler.kt b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/RenewApiRequestHandler.kt
index 62d43643..3fc5dc38 100644
--- a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/RenewApiRequestHandler.kt
+++ b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/api/RenewApiRequestHandler.kt
@@ -8,8 +8,6 @@ import com.auth0.auth0_flutter.request_handlers.MethodCallRequest
 import com.auth0.auth0_flutter.toMap
 import com.auth0.auth0_flutter.utils.assertHasProperties
 import io.flutter.plugin.common.MethodChannel
-import java.text.SimpleDateFormat
-import java.util.Locale
 
 private const val AUTH_RENEW_METHOD = "auth#renew"
 
@@ -46,10 +44,7 @@ class RenewApiRequestHandler : ApiRequestHandler {
 
             override fun onSuccess(credentials: Credentials) {
                 val scope = credentials.scope?.split(" ") ?: listOf()
-                val sdf =
-                    SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
-
-                val formattedDate = sdf.format(credentials.expiresAt)
+                val formattedDate = credentials.expiresAt.toInstant().toString();
 
                 result.success(
                     mapOf(
diff --git a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/GetCredentialsRequestHandler.kt b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/GetCredentialsRequestHandler.kt
index 31549dae..664d5ea2 100644
--- a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/GetCredentialsRequestHandler.kt
+++ b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/GetCredentialsRequestHandler.kt
@@ -8,7 +8,6 @@ import com.auth0.android.result.Credentials
 import com.auth0.auth0_flutter.request_handlers.MethodCallRequest
 import com.auth0.auth0_flutter.toMap
 import io.flutter.plugin.common.MethodChannel
-import java.text.SimpleDateFormat
 import java.util.*
 
 class GetCredentialsRequestHandler : CredentialsManagerRequestHandler {
@@ -38,11 +37,7 @@ class GetCredentialsRequestHandler : CredentialsManagerRequestHandler {
 
             override fun onSuccess(credentials: Credentials) {
                 val scopes = credentials.scope?.split(" ") ?: listOf()
-                val sdf =
-                    SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
-
-                val formattedDate = sdf.format(credentials.expiresAt)
-
+                val formattedDate = credentials.expiresAt.toInstant().toString()
                 result.success(
                     mapOf(
                         "accessToken" to credentials.accessToken,
diff --git a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/SaveCredentialsRequestHandler.kt b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/SaveCredentialsRequestHandler.kt
index 6a395c53..5955f0bc 100644
--- a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/SaveCredentialsRequestHandler.kt
+++ b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/credentials_manager/SaveCredentialsRequestHandler.kt
@@ -6,8 +6,7 @@ import com.auth0.android.result.Credentials
 import com.auth0.auth0_flutter.request_handlers.MethodCallRequest
 import com.auth0.auth0_flutter.utils.assertHasProperties
 import io.flutter.plugin.common.MethodChannel
-import java.text.SimpleDateFormat
-import java.time.LocalDate
+import java.time.Instant
 import java.util.*
 
 
@@ -32,15 +31,14 @@ class SaveCredentialsRequestHandler : CredentialsManagerRequestHandler {
             scope = scopes.joinToString(separator = " ")
         }
 
-        val format = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
-        val date = format.parse(credentials.get("expiresAt") as String)
+        val instant = Instant.parse(credentials.get("expiresAt") as String)
 
         credentialsManager.saveCredentials(Credentials(
             credentials.get("idToken") as String,
             credentials.get("accessToken") as String,
             credentials.get("tokenType") as String,
             credentials.get("refreshToken") as String?,
-            date,
+            Date.from(instant),
             scope,
         ))
         result.success(true)
diff --git a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/web_auth/LoginWebAuthRequestHandler.kt b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/web_auth/LoginWebAuthRequestHandler.kt
index 0251a172..b11ab41f 100644
--- a/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/web_auth/LoginWebAuthRequestHandler.kt
+++ b/auth0_flutter/android/src/main/kotlin/com/auth0/auth0_flutter/request_handlers/web_auth/LoginWebAuthRequestHandler.kt
@@ -8,7 +8,6 @@ import com.auth0.android.result.Credentials
 import com.auth0.auth0_flutter.request_handlers.MethodCallRequest
 import com.auth0.auth0_flutter.toMap
 import io.flutter.plugin.common.MethodChannel
-import java.text.SimpleDateFormat
 import java.util.*
 
 class LoginWebAuthRequestHandler(private val builderResolver: (MethodCallRequest) -> WebAuthProvider.Builder) : WebAuthRequestHandler {
@@ -69,10 +68,7 @@ class LoginWebAuthRequestHandler(private val builderResolver: (MethodCallRequest
             override fun onSuccess(credentials: Credentials) {
                 // Success! Access token and ID token are presents
                 val scopes = credentials.scope?.split(" ") ?: listOf()
-                val sdf =
-                    SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)
-
-                val formattedDate = sdf.format(credentials.expiresAt)
+                val formattedDate = credentials.expiresAt.toInstant().toString()
 
                 result.success(
                     mapOf(