diff --git a/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModel.kt b/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModel.kt
index ebc6999e96..a7ae9ccdca 100644
--- a/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModel.kt
+++ b/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModel.kt
@@ -19,8 +19,8 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import kotlinx.parcelize.Parcelize
+import java.time.Clock
 import java.time.format.DateTimeFormatter
-import java.util.TimeZone
 import javax.inject.Inject
 
 private const val KEY_STATE = "state"
@@ -30,6 +30,7 @@ private const val KEY_STATE = "state"
  */
 @HiltViewModel
 class LoginApprovalViewModel @Inject constructor(
+    private val clock: Clock,
     private val authRepository: AuthRepository,
     private val specialCircumstanceManager: SpecialCircumstanceManager,
     savedStateHandle: SavedStateHandle,
@@ -54,7 +55,7 @@ class LoginApprovalViewModel @Inject constructor(
     private val dateTimeFormatter
         get() = DateTimeFormatter
             .ofPattern("M/d/yy hh:mm a")
-            .withZone(TimeZone.getDefault().toZoneId())
+            .withZone(clock.zone)
 
     init {
         state
diff --git a/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModel.kt b/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModel.kt
index ac93a4959e..310f6b0887 100644
--- a/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModel.kt
+++ b/app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModel.kt
@@ -18,8 +18,8 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import kotlinx.parcelize.Parcelize
+import java.time.Clock
 import java.time.format.DateTimeFormatter
-import java.util.TimeZone
 import javax.inject.Inject
 
 private const val KEY_STATE = "state"
@@ -29,6 +29,7 @@ private const val KEY_STATE = "state"
  */
 @HiltViewModel
 class PendingRequestsViewModel @Inject constructor(
+    private val clock: Clock,
     private val authRepository: AuthRepository,
     private val settingsRepository: SettingsRepository,
     savedStateHandle: SavedStateHandle,
@@ -44,7 +45,7 @@ class PendingRequestsViewModel @Inject constructor(
     private val dateTimeFormatter
         get() = DateTimeFormatter
             .ofPattern("M/d/yy hh:mm a")
-            .withZone(TimeZone.getDefault().toZoneId())
+            .withZone(clock.zone)
 
     init {
         updateAuthRequestList()
diff --git a/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModelTest.kt b/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModelTest.kt
index f87ab6eac3..222fe6bb04 100644
--- a/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModelTest.kt
+++ b/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/loginapproval/LoginApprovalViewModelTest.kt
@@ -21,15 +21,19 @@ import io.mockk.every
 import io.mockk.mockk
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.test.runTest
-import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
+import java.time.Clock
+import java.time.Instant
+import java.time.ZoneOffset
 import java.time.ZonedDateTime
-import java.util.TimeZone
 
 class LoginApprovalViewModelTest : BaseViewModelTest() {
 
+    private val fixedClock: Clock = Clock.fixed(
+        Instant.parse("2023-10-27T12:00:00Z"),
+        ZoneOffset.UTC,
+    )
     private val mockSpecialCircumstanceManager: SpecialCircumstanceManager = mockk {
         every { specialCircumstance } returns null
     }
@@ -43,18 +47,6 @@ class LoginApprovalViewModelTest : BaseViewModelTest() {
         every { userStateFlow } returns mutableUserStateFlow
     }
 
-    @BeforeEach
-    fun setup() {
-        // Setting the timezone so the tests pass consistently no matter the environment.
-        TimeZone.setDefault(TimeZone.getTimeZone("UTC"))
-    }
-
-    @AfterEach
-    fun tearDown() {
-        // Clearing the timezone after the test.
-        TimeZone.setDefault(null)
-    }
-
     @Test
     fun `init should call getAuthRequestById when special circumstance is absent`() {
         createViewModel(state = null)
@@ -252,6 +244,7 @@ class LoginApprovalViewModelTest : BaseViewModelTest() {
         specialCircumstanceManager: SpecialCircumstanceManager = mockSpecialCircumstanceManager,
         state: LoginApprovalState? = DEFAULT_STATE,
     ): LoginApprovalViewModel = LoginApprovalViewModel(
+        clock = fixedClock,
         authRepository = authRepository,
         specialCircumstanceManager = specialCircumstanceManager,
         savedStateHandle = SavedStateHandle()
diff --git a/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModelTest.kt b/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModelTest.kt
index 2af91b753f..925a213bdd 100644
--- a/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModelTest.kt
+++ b/app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/settings/accountsecurity/pendingrequests/PendingRequestsViewModelTest.kt
@@ -16,16 +16,20 @@ import io.mockk.every
 import io.mockk.mockk
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.test.runTest
-import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.Assertions.assertEquals
-import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
+import java.time.Clock
+import java.time.Instant
+import java.time.ZoneOffset
 import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatter
-import java.util.TimeZone
 
 class PendingRequestsViewModelTest : BaseViewModelTest() {
 
+    private val fixedClock: Clock = Clock.fixed(
+        Instant.parse("2023-10-27T12:00:00Z"),
+        ZoneOffset.UTC,
+    )
     private val mutableAuthRequestsWithUpdatesFlow =
         bufferedMutableSharedFlow<AuthRequestsUpdatesResult>()
     private val authRepository = mockk<AuthRepository> {
@@ -37,18 +41,6 @@ class PendingRequestsViewModelTest : BaseViewModelTest() {
         every { getPullToRefreshEnabledFlow() } returns mutablePullToRefreshStateFlow
     }
 
-    @BeforeEach
-    fun setup() {
-        // Setting the timezone so the tests pass consistently no matter the environment.
-        TimeZone.setDefault(TimeZone.getTimeZone("UTC"))
-    }
-
-    @AfterEach
-    fun tearDown() {
-        // Clearing the timezone after the test.
-        TimeZone.setDefault(null)
-    }
-
     @Test
     fun `init should call getAuthRequestsWithUpdates`() {
         createViewModel(state = null)
@@ -65,7 +57,7 @@ class PendingRequestsViewModelTest : BaseViewModelTest() {
     fun `getPendingResults success with content should update state with some requests filtered`() {
         val dateTimeFormatter = DateTimeFormatter
             .ofPattern("M/d/yy hh:mm a")
-            .withZone(TimeZone.getDefault().toZoneId())
+            .withZone(fixedClock.zone)
         val nowZonedDateTime = ZonedDateTime.now()
         val requestList = listOf(
             AuthRequest(
@@ -288,7 +280,7 @@ class PendingRequestsViewModelTest : BaseViewModelTest() {
     fun `on LifecycleResume should update state`() = runTest {
         val dateTimeFormatter = DateTimeFormatter
             .ofPattern("M/d/yy hh:mm a")
-            .withZone(TimeZone.getDefault().toZoneId())
+            .withZone(fixedClock.zone)
         val nowZonedDateTime = ZonedDateTime.now()
         val fiveMinZonedDateTime = ZonedDateTime.now().minusMinutes(5)
         val sixMinZonedDateTime = ZonedDateTime.now().minusMinutes(6)
@@ -373,6 +365,7 @@ class PendingRequestsViewModelTest : BaseViewModelTest() {
     private fun createViewModel(
         state: PendingRequestsState? = DEFAULT_STATE,
     ): PendingRequestsViewModel = PendingRequestsViewModel(
+        clock = fixedClock,
         authRepository = authRepository,
         settingsRepository = settingsRepository,
         savedStateHandle = SavedStateHandle().apply { set("state", state) },