diff --git a/app/src/main/java/org/oppia/android/app/customview/SegmentedCircularProgressView.kt b/app/src/main/java/org/oppia/android/app/customview/SegmentedCircularProgressView.kt
index dfb764fa592..8f21c03bd52 100644
--- a/app/src/main/java/org/oppia/android/app/customview/SegmentedCircularProgressView.kt
+++ b/app/src/main/java/org/oppia/android/app/customview/SegmentedCircularProgressView.kt
@@ -8,10 +8,14 @@ import android.util.AttributeSet
 import android.util.TypedValue
 import android.view.View
 import androidx.core.content.ContextCompat
-import androidx.core.text.TextUtilsCompat
 import androidx.core.view.ViewCompat
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentManager
+import javax.inject.Inject
 import org.oppia.android.R
-import java.util.Locale
+import org.oppia.android.app.translation.AppLanguageResourceHandler
+import org.oppia.android.app.view.ViewComponentFactory
+import org.oppia.android.app.view.ViewComponentImpl
 
 private const val STROKE_DASH_GAP_IN_DEGREE = 12
 
@@ -22,10 +26,14 @@ private const val STROKE_DASH_GAP_IN_DEGREE = 12
  * Reference: // https://stackoverflow.com/a/39210676
  */
 class SegmentedCircularProgressView : View {
+  @Inject
+  lateinit var resourceHandler: AppLanguageResourceHandler
+
   private var sweepAngle = 0f
   private var strokeWidth = 0f
-  private val isRTL = TextUtilsCompat
-    .getLayoutDirectionFromLocale(Locale.getDefault()) == ViewCompat.LAYOUT_DIRECTION_RTL
+  private val isRtl by lazy {
+    resourceHandler.getLayoutDirection() == ViewCompat.LAYOUT_DIRECTION_RTL
+  }
 
   private lateinit var baseRect: RectF
   private lateinit var chapterFinishedArcPaint: Paint
@@ -81,8 +89,16 @@ class SegmentedCircularProgressView : View {
     }
   }
 
+  override fun onAttachedToWindow() {
+    super.onAttachedToWindow()
+
+    val viewComponentFactory = FragmentManager.findFragment<Fragment>(this) as ViewComponentFactory
+    val viewComponent = viewComponentFactory.createViewComponent(this) as ViewComponentImpl
+    viewComponent.inject(this)
+  }
+
   override fun onDraw(canvas: Canvas) {
-    if (isRTL)
+    if (isRtl)
       rotationY = 180f
     super.onDraw(canvas)
     if (!this::baseRect.isInitialized) {
diff --git a/app/src/main/java/org/oppia/android/app/help/faq/FAQListViewModel.kt b/app/src/main/java/org/oppia/android/app/help/faq/FAQListViewModel.kt
index f753d852260..da44b6b68d1 100644
--- a/app/src/main/java/org/oppia/android/app/help/faq/FAQListViewModel.kt
+++ b/app/src/main/java/org/oppia/android/app/help/faq/FAQListViewModel.kt
@@ -6,7 +6,6 @@ import org.oppia.android.app.help.faq.faqItemViewModel.FAQContentViewModel
 import org.oppia.android.app.help.faq.faqItemViewModel.FAQHeaderViewModel
 import org.oppia.android.app.help.faq.faqItemViewModel.FAQItemViewModel
 import org.oppia.android.app.viewmodel.ObservableViewModel
-import java.util.Locale
 import javax.inject.Inject
 import org.oppia.android.app.translation.AppLanguageResourceHandler
 
diff --git a/app/src/main/java/org/oppia/android/app/hintsandsolution/HintsAndSolutionDialogFragmentPresenter.kt b/app/src/main/java/org/oppia/android/app/hintsandsolution/HintsAndSolutionDialogFragmentPresenter.kt
index 2c4bdc5a974..5f7c7bd33ed 100644
--- a/app/src/main/java/org/oppia/android/app/hintsandsolution/HintsAndSolutionDialogFragmentPresenter.kt
+++ b/app/src/main/java/org/oppia/android/app/hintsandsolution/HintsAndSolutionDialogFragmentPresenter.kt
@@ -22,7 +22,6 @@ import org.oppia.android.util.gcsresource.DefaultResourceBucketName
 import org.oppia.android.util.parser.html.ExplorationHtmlParserEntityType
 import org.oppia.android.util.parser.html.HtmlParser
 import java.lang.IllegalStateException
-import java.util.Locale
 import javax.inject.Inject
 import org.oppia.android.app.model.WrittenTranslationContext
 import org.oppia.android.app.translation.AppLanguageResourceHandler
diff --git a/app/src/main/java/org/oppia/android/app/player/audio/LanguageDialogFragment.kt b/app/src/main/java/org/oppia/android/app/player/audio/LanguageDialogFragment.kt
index 172c0978f9e..33f1576f1c8 100644
--- a/app/src/main/java/org/oppia/android/app/player/audio/LanguageDialogFragment.kt
+++ b/app/src/main/java/org/oppia/android/app/player/audio/LanguageDialogFragment.kt
@@ -5,7 +5,6 @@ import android.content.Context
 import android.os.Bundle
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.view.ContextThemeWrapper
-import androidx.fragment.app.DialogFragment
 import org.oppia.android.R
 import java.util.Locale
 import kotlin.collections.ArrayList
@@ -59,6 +58,7 @@ class LanguageDialogFragment : InjectableDialogFragment() {
       if (languageCode == "hi-en") {
         languageNameArrayList.add("Hinglish")
       } else {
+        // TODO(#3791): Remove this dependency.
         val locale = Locale(languageCode)
         val name = locale.getDisplayLanguage(locale)
         languageNameArrayList.add(name)
diff --git a/app/src/main/java/org/oppia/android/app/translation/AppLanguageResourceHandler.kt b/app/src/main/java/org/oppia/android/app/translation/AppLanguageResourceHandler.kt
index 90f642b106e..77d5aef0a0c 100644
--- a/app/src/main/java/org/oppia/android/app/translation/AppLanguageResourceHandler.kt
+++ b/app/src/main/java/org/oppia/android/app/translation/AppLanguageResourceHandler.kt
@@ -49,6 +49,8 @@ class AppLanguageResourceHandler @Inject constructor(
   fun computeDateTimeString(timestampMillis: Long): String =
     getDisplayLocale().computeDateTimeString(timestampMillis)
 
+  fun getLayoutDirection(): Int = getDisplayLocale().getLayoutDirection()
+
   private fun getDisplayLocale(): OppiaLocale.DisplayLocale =
     appLanguageLocaleHandler.getDisplayLocale()
 }
diff --git a/app/src/main/java/org/oppia/android/app/view/ViewComponentImpl.kt b/app/src/main/java/org/oppia/android/app/view/ViewComponentImpl.kt
index 06a928361fd..7836d64ff4b 100644
--- a/app/src/main/java/org/oppia/android/app/view/ViewComponentImpl.kt
+++ b/app/src/main/java/org/oppia/android/app/view/ViewComponentImpl.kt
@@ -4,6 +4,7 @@ import android.view.View
 import dagger.BindsInstance
 import dagger.Subcomponent
 import org.oppia.android.app.customview.LessonThumbnailImageView
+import org.oppia.android.app.customview.SegmentedCircularProgressView
 import org.oppia.android.app.home.promotedlist.ComingSoonTopicsListView
 import org.oppia.android.app.home.promotedlist.PromotedStoryListView
 import org.oppia.android.app.player.state.DragDropSortInteractionView
@@ -30,4 +31,5 @@ interface ViewComponentImpl: ViewComponent {
   fun inject(imageRegionSelectionInteractionView: ImageRegionSelectionInteractionView)
   fun inject(lessonThumbnailImageView: LessonThumbnailImageView)
   fun inject(promotedStoryListView: PromotedStoryListView)
+  fun inject(segmentedCircularProgressView: SegmentedCircularProgressView)
 }
diff --git a/app/src/sharedTest/java/org/oppia/android/app/administratorcontrols/AppVersionActivityTest.kt b/app/src/sharedTest/java/org/oppia/android/app/administratorcontrols/AppVersionActivityTest.kt
index c06a54996b2..10b71f1e213 100644
--- a/app/src/sharedTest/java/org/oppia/android/app/administratorcontrols/AppVersionActivityTest.kt
+++ b/app/src/sharedTest/java/org/oppia/android/app/administratorcontrols/AppVersionActivityTest.kt
@@ -230,6 +230,8 @@ class AppVersionActivityTest {
     }
   }
 
+  // TODO(#3792): Remove this usage of Locale (probably by introducing a test utility in the locale
+  //  package to generate these strings).
   private fun getDateTime(dateTimeTimestamp: Long): String? {
     return oppiaDateTimeFormatter.formatDateFromDateString(
       OppiaDateTimeFormatter.DD_MMM_YYYY,
diff --git a/app/src/sharedTest/java/org/oppia/android/app/player/audio/AudioFragmentTest.kt b/app/src/sharedTest/java/org/oppia/android/app/player/audio/AudioFragmentTest.kt
index 79e2fcc9427..6b9665a0f07 100644
--- a/app/src/sharedTest/java/org/oppia/android/app/player/audio/AudioFragmentTest.kt
+++ b/app/src/sharedTest/java/org/oppia/android/app/player/audio/AudioFragmentTest.kt
@@ -313,6 +313,7 @@ class AudioFragmentTest {
       testCoroutineDispatchers.runCurrent()
       onView(withId(R.id.audio_language_icon)).perform(click())
 
+      // TODO(#3791): Remove this dependency.
       val locale = Locale("es")
 
       testCoroutineDispatchers.runCurrent()
diff --git a/app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt b/app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt
index b256d050eb5..8d36571cae9 100644
--- a/app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt
+++ b/app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt
@@ -108,6 +108,8 @@ class SplashActivityTest {
   @Inject
   lateinit var fakeMetaDataRetriever: FakeExpirationMetaDataRetriever
 
+  // TODO(#3792): Remove this usage of Locale (probably by introducing a test utility in the locale
+  //  package to generate these strings).
   private val expirationDateFormat by lazy { SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()) }
 
   @Before
diff --git a/domain/BUILD.bazel b/domain/BUILD.bazel
index 3f642a241ba..6e228da6610 100755
--- a/domain/BUILD.bazel
+++ b/domain/BUILD.bazel
@@ -154,6 +154,7 @@ TEST_DEPS = [
     "//third_party:robolectric_android-all",
     "//utility/src/main/java/org/oppia/android/util/caching/testing:caching_test_module",
     "//utility/src/main/java/org/oppia/android/util/extensions:context_extensions",
+    "//utility/src/main/java/org/oppia/android/util/locale:prod_module",
     "//utility/src/main/java/org/oppia/android/util/networking:debug_module",
     "//utility/src/main/java/org/oppia/android/util/networking:debug_util_module",
 ]
diff --git a/domain/src/main/java/org/oppia/android/domain/onboarding/AppStartupStateController.kt b/domain/src/main/java/org/oppia/android/domain/onboarding/AppStartupStateController.kt
index 39e134f5c3e..061b6c9f875 100644
--- a/domain/src/main/java/org/oppia/android/domain/onboarding/AppStartupStateController.kt
+++ b/domain/src/main/java/org/oppia/android/domain/onboarding/AppStartupStateController.kt
@@ -1,5 +1,7 @@
 package org.oppia.android.domain.onboarding
 
+import javax.inject.Inject
+import javax.inject.Singleton
 import org.oppia.android.app.model.AppStartupState
 import org.oppia.android.app.model.AppStartupState.StartupMode
 import org.oppia.android.app.model.OnboardingState
@@ -7,13 +9,8 @@ import org.oppia.android.data.persistence.PersistentCacheStore
 import org.oppia.android.domain.oppialogger.OppiaLogger
 import org.oppia.android.util.data.DataProvider
 import org.oppia.android.util.data.DataProviders.Companion.transform
-import java.text.ParseException
-import java.text.SimpleDateFormat
-import java.util.Date
-import java.util.Locale
-import javax.inject.Inject
-import javax.inject.Singleton
 import org.oppia.android.util.extensions.getStringFromBundle
+import org.oppia.android.util.locale.OppiaLocale
 
 private const val APP_STARTUP_STATE_DATA_PROVIDER_ID = "app_startup_state_data_provider_id"
 
@@ -22,10 +19,9 @@ private const val APP_STARTUP_STATE_DATA_PROVIDER_ID = "app_startup_state_data_p
 class AppStartupStateController @Inject constructor(
   cacheStoreFactory: PersistentCacheStore.Factory,
   private val oppiaLogger: OppiaLogger,
-  private val expirationMetaDataRetriever: ExpirationMetaDataRetriever
+  private val expirationMetaDataRetriever: ExpirationMetaDataRetriever,
+  private val machineLocale: OppiaLocale.MachineLocale
 ) {
-  private val expirationDateFormat by lazy { SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()) }
-
   private val onboardingFlowStore =
     cacheStoreFactory.create("on_boarding_flow", OnboardingState.getDefaultInstance())
 
@@ -88,18 +84,9 @@ class AppStartupStateController @Inject constructor(
       ) ?: true
     return if (isAppExpirationEnabled) {
       val expirationDateString = applicationMetadata?.getStringFromBundle("expiration_date")
-      val expirationDate = expirationDateString?.let { parseDate(it) }
+      val expirationDate = expirationDateString?.let { machineLocale.parseOppiaDate(it) }
       // Assume the app is in an expired state if something fails when comparing the date.
-      expirationDate?.before(Date()) ?: true
+      expirationDate?.isBeforeToday() ?: true
     } else false
   }
-
-  private fun parseDate(dateString: String): Date? {
-    return try {
-      expirationDateFormat.parse(dateString)
-    } catch (e: ParseException) {
-      oppiaLogger.e("DOMAIN", "Failed to parse date string: $dateString", e)
-      null
-    }
-  }
 }
diff --git a/domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt b/domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt
index d3e75dbe3d7..78b0e04369c 100644
--- a/domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt
+++ b/domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt
@@ -14,6 +14,13 @@ import dagger.BindsInstance
 import dagger.Component
 import dagger.Module
 import dagger.Provides
+import java.text.SimpleDateFormat
+import java.time.Duration
+import java.time.Instant
+import java.util.Date
+import java.util.Locale
+import javax.inject.Inject
+import javax.inject.Singleton
 import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -40,20 +47,15 @@ import org.oppia.android.util.data.AsyncResult
 import org.oppia.android.util.data.DataProviders.Companion.toLiveData
 import org.oppia.android.util.data.DataProvidersInjector
 import org.oppia.android.util.data.DataProvidersInjectorProvider
+import org.oppia.android.util.locale.MachineLocaleModule
 import org.oppia.android.util.logging.EnableConsoleLog
 import org.oppia.android.util.logging.EnableFileLog
 import org.oppia.android.util.logging.GlobalLogLevel
 import org.oppia.android.util.logging.LogLevel
 import org.oppia.android.util.networking.NetworkConnectionUtilDebugModule
+import org.oppia.android.util.system.OppiaClockModule
 import org.robolectric.Shadows.shadowOf
 import org.robolectric.annotation.Config
-import java.text.SimpleDateFormat
-import java.time.Duration
-import java.time.Instant
-import java.util.Date
-import java.util.Locale
-import javax.inject.Inject
-import javax.inject.Singleton
 
 /** Tests for [AppStartupStateController]. */
 @RunWith(AndroidJUnit4::class)
@@ -85,6 +87,8 @@ class AppStartupStateControllerTest {
   @Captor
   lateinit var appStartupStateCaptor: ArgumentCaptor<AsyncResult<AppStartupState>>
 
+  // TODO(#3792): Remove this usage of Locale (probably by introducing a test utility in the locale
+  //  package to generate these strings).
   private val expirationDateFormat by lazy { SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()) }
 
   @Test
@@ -431,6 +435,7 @@ class AppStartupStateControllerTest {
       LogStorageModule::class, RobolectricModule::class,
       TestModule::class, TestDispatcherModule::class, TestLogReportingModule::class,
       NetworkConnectionUtilDebugModule::class,
+      OppiaClockModule::class, MachineLocaleModule::class,
       ExpirationMetaDataRetrieverModule::class // Use real implementation to test closer to prod.
     ]
   )
diff --git a/scripts/assets/file_content_validation_checks.textproto b/scripts/assets/file_content_validation_checks.textproto
index f44621f69ad..c6470d7f786 100644
--- a/scripts/assets/file_content_validation_checks.textproto
+++ b/scripts/assets/file_content_validation_checks.textproto
@@ -170,3 +170,47 @@ file_content_checks {
   prohibited_content_regex: "android:configChanges"
   failure_message: "Never explicitly handle configuration changes. Instead, use saved instance states for retaining state across rotations. For other types of configuration changes, follow up with the developer mailing list with how to proceed if you think this is a legitimate case."
 }
+file_content_checks {
+  file_path_regex: ".+?.kt"
+  prohibited_content_regex: "java\\.util\\.Calendar"
+  failure_message: "Don't use Calendar directly. Instead, use OppiaClock and/or OppiaLocale for calendar-specific operations."
+  exempted_file_name: "testing/src/main/java/org/oppia/android/testing/time/FakeOppiaClock.kt"
+  exempted_file_name: "testing/src/test/java/org/oppia/android/testing/time/FakeOppiaClockTest.kt"
+  exempted_file_name: "utility/src/main/java/org/oppia/android/util/locale/MachineLocaleImpl.kt"
+  exempted_file_name: "utility/src/main/java/org/oppia/android/util/system/OppiaClock.kt"
+}
+file_content_checks {
+  file_path_regex: ".+?.kt"
+  prohibited_content_regex: "java\\.util\\.Date"
+  failure_message: "Don't use Date directly. Instead, perform date-based operations using OppiaLocale."
+  exempted_file_name: "app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt"
+  exempted_file_name: "domain/src/main/java/org/oppia/android/domain/locale/DisplayLocaleImpl.kt"
+  exempted_file_name: "domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt"
+  exempted_file_name: "testing/src/main/java/org/oppia/android/testing/time/FakeOppiaClock.kt"
+  exempted_file_name: "utility/src/main/java/org/oppia/android/util/system/OppiaClock.kt"
+  exempted_file_name: "utility/src/main/java/org/oppia/android/util/locale/MachineLocaleImpl.kt"
+}
+file_content_checks {
+  file_path_regex: ".+?.kt"
+  prohibited_content_regex: "java\\.text"
+  failure_message: "Don't perform date/time formatting directly. Instead, use OppiaLocale."
+  exempted_file_name: "app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt"
+  exempted_file_name: "domain/src/main/java/org/oppia/android/domain/locale/DisplayLocaleImpl.kt"
+  exempted_file_name: "domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt"
+  exempted_file_name: "testing/src/main/java/org/oppia/android/testing/time/FakeOppiaClock.kt"
+  exempted_file_name: "utility/src/main/java/org/oppia/android/util/locale/MachineLocaleImpl.kt"
+}
+file_content_checks {
+  file_path_regex: ".+?.kt"
+  prohibited_content_regex: "java\\.util\\.Locale"
+  failure_message: "Don't use Locale directly. Instead, use LocaleController, or OppiaLocale & its subclasses."
+  exempted_file_name: "app/src/main/java/org/oppia/android/app/player/audio/LanguageDialogFragment.kt"
+  exempted_file_name: "app/src/sharedTest/java/org/oppia/android/app/administratorcontrols/AppVersionActivityTest.kt"
+  exempted_file_name: "app/src/sharedTest/java/org/oppia/android/app/player/audio/AudioFragmentTest.kt"
+  exempted_file_name: "app/src/sharedTest/java/org/oppia/android/app/splash/SplashActivityTest.kt"
+  exempted_file_patterns: "domain/src/main/java/org/oppia/android/domain/locale/.+?\\.kt"
+  exempted_file_name: "domain/src/test/java/org/oppia/android/domain/onboarding/AppStartupStateControllerTest.kt"
+  exempted_file_patterns: "scripts/.+?\\.kt"
+  exempted_file_patterns: "utility/src/main/java/org/oppia/android/util/locale/.+?\\.kt"
+  exempted_file_name: "utility/src/main/java/org/oppia/android/util/logging/firebase/FirebaseEventLogger.kt"
+}
diff --git a/scripts/src/java/org/oppia/android/scripts/ci/ComputeAffectedTests.kt b/scripts/src/java/org/oppia/android/scripts/ci/ComputeAffectedTests.kt
index 5aea7c69969..72b976c9b64 100644
--- a/scripts/src/java/org/oppia/android/scripts/ci/ComputeAffectedTests.kt
+++ b/scripts/src/java/org/oppia/android/scripts/ci/ComputeAffectedTests.kt
@@ -64,7 +64,7 @@ fun main(args: Array<String>) {
 
 // Needed since the codebase isn't yet using Kotlin 1.5, so this function isn't available.
 private fun String.toBooleanStrictOrNull(): Boolean? {
-  return when (toLowerCase(Locale.getDefault())) {
+  return when (toLowerCase(Locale.US)) {
     "false" -> false
     "true" -> true
     else -> null
@@ -110,7 +110,7 @@ class ComputeAffectedTests(
     println("Current branch: ${gitClient.currentBranch}")
     println("Most recent common commit: ${gitClient.branchMergeBase}")
 
-    val currentBranch = gitClient.currentBranch.toLowerCase(Locale.getDefault())
+    val currentBranch = gitClient.currentBranch.toLowerCase(Locale.US)
     val affectedTestTargets = if (computeAllTestsSetting || currentBranch == "develop") {
       computeAllTestTargets(bazelClient)
     } else computeAffectedTargetsForNonDevelopBranch(gitClient, bazelClient, rootDirectory)
diff --git a/utility/src/main/java/org/oppia/android/util/logging/BUILD.bazel b/utility/src/main/java/org/oppia/android/util/logging/BUILD.bazel
index c5bf2a82261..3ea1f8bbe89 100644
--- a/utility/src/main/java/org/oppia/android/util/logging/BUILD.bazel
+++ b/utility/src/main/java/org/oppia/android/util/logging/BUILD.bazel
@@ -27,6 +27,7 @@ kt_android_library(
         ":log_level",
         "//third_party:javax_inject_javax_inject",
         "//third_party:org_jetbrains_kotlinx_kotlinx-coroutines-core",
+        "//utility/src/main/java/org/oppia/android/util/locale:oppia_locale",
         "//utility/src/main/java/org/oppia/android/util/threading:annotations",
     ],
 )
diff --git a/utility/src/main/java/org/oppia/android/util/logging/ConsoleLogger.kt b/utility/src/main/java/org/oppia/android/util/logging/ConsoleLogger.kt
index f7f904e47f0..5e905b2be41 100644
--- a/utility/src/main/java/org/oppia/android/util/logging/ConsoleLogger.kt
+++ b/utility/src/main/java/org/oppia/android/util/logging/ConsoleLogger.kt
@@ -7,9 +7,9 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
 import org.oppia.android.util.threading.BlockingDispatcher
 import java.io.File
-import java.util.Calendar
 import javax.inject.Inject
 import javax.inject.Singleton
+import org.oppia.android.util.locale.OppiaLocale
 
 /** Wrapper class for Android logcat and file logging. All logs in the app should use this class. */
 @Singleton
@@ -18,7 +18,8 @@ class ConsoleLogger @Inject constructor(
   @BlockingDispatcher private val blockingDispatcher: CoroutineDispatcher,
   @EnableConsoleLog private val enableConsoleLog: Boolean,
   @EnableFileLog private val enableFileLog: Boolean,
-  @GlobalLogLevel private val globalLogLevel: LogLevel
+  @GlobalLogLevel private val globalLogLevel: LogLevel,
+  private val machineLocale: OppiaLocale.MachineLocale
 ) {
   private val blockingScope = CoroutineScope(blockingDispatcher)
   private val logDirectory = File(context.filesDir, "oppia_app.log")
@@ -93,7 +94,9 @@ class ConsoleLogger @Inject constructor(
       Log.println(logLevel.logLevel, tag, fullLog)
     }
     if (enableFileLog) {
-      logToFileInBackground("${Calendar.getInstance().time}\t${logLevel.name}/$tag: $fullLog")
+      logToFileInBackground(
+        "${machineLocale.computeCurrentTimeString()}\t${logLevel.name}/$tag: $fullLog"
+      )
     }
   }
 
diff --git a/utility/src/main/java/org/oppia/android/util/logging/firebase/FirebaseEventLogger.kt b/utility/src/main/java/org/oppia/android/util/logging/firebase/FirebaseEventLogger.kt
index cfaecc282db..8f1aa539d51 100644
--- a/utility/src/main/java/org/oppia/android/util/logging/firebase/FirebaseEventLogger.kt
+++ b/utility/src/main/java/org/oppia/android/util/logging/firebase/FirebaseEventLogger.kt
@@ -28,6 +28,7 @@ class FirebaseEventLogger(
   override fun logEvent(eventLog: EventLog) {
     bundle = eventBundleCreator.createEventBundle(eventLog)
     firebaseAnalytics.logEvent(eventLog.actionName.toString(), bundle)
+    // TODO(#3792): Remove this usage of Locale.
     firebaseAnalytics.setUserProperty(COUNTRY_USER_PROPERTY, Locale.getDefault().displayCountry)
     firebaseAnalytics.setUserProperty(
       NETWORK_USER_PROPERTY, connectivityManager.activeNetworkInfo.typeName