diff --git a/CHANGELOG.md b/CHANGELOG.md
index b929e7c4a1..02be266384 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 - Measure HTTP rate-limit backoff on a monotonic clock instead of the wall clock, so that a device time change no longer lifts or extends an active rate limit ([#6030](https://github.com/getsentry/sentry-java/pull/6030))
 - Measure check-in durations on the monotonic clock, so a cron job that spans device sleep reports the time a user would measure instead of the time the CPU was awake ([#6032](https://github.com/getsentry/sentry-java/pull/6032))
+- Deprecate `DateUtils.getCurrentDateTime()` in favour of `options.getDateProvider().now()`, which is configurable and resolves finer than a millisecond ([#6043](https://github.com/getsentry/sentry-java/pull/6043))
 
 ### Fixes
 
@@ -17,6 +18,7 @@
 - Add internal `Timestamp`, `Timing` and `EpochClock`, separating a serialized wall-clock instant from a monotonically measured duration ([#6045](https://github.com/getsentry/sentry-java/pull/6045))
 - Deprecate `RateLimiter(ICurrentDateProvider, SentryOptions)` in favour of `RateLimiter(MonotonicClock, RateLimiterConfig)` ([#6030](https://github.com/getsentry/sentry-java/pull/6030))
 - Measure ANR detection thresholds on the internal `MonotonicClock`, so the clock is named by the type instead of chosen at each call site ([#6041](https://github.com/getsentry/sentry-java/pull/6041))
+- Deprecate `ICurrentDateProvider.getCurrentTimeMillis()`, `CurrentDateProvider.getInstance()`, `AndroidCurrentDateProvider.getInstance()` and `AndroidDateUtils.getCurrentSentryDateTime()` in favour of `MonotonicClock` and `SentryDateProvider` ([#6043](https://github.com/getsentry/sentry-java/pull/6043))
 
 ## 8.55.0
 
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/ActivityLifecycleIntegration.java b/sentry-android-core/src/main/java/io/sentry/android/core/ActivityLifecycleIntegration.java
index 505bb84ea2..a843c0a30f 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/ActivityLifecycleIntegration.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/ActivityLifecycleIntegration.java
@@ -549,6 +549,9 @@ private void finishTransaction(
     }
   }
 
+  // TODO [MAJOR]: replace AndroidDateUtils.getCurrentSentryDateTime() with
+  // options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   @Override
   public void onActivityPreCreated(
       final @NotNull Activity activity, final @Nullable Bundle savedInstanceState) {
@@ -604,6 +607,9 @@ public void onActivityPostCreated(
     }
   }
 
+  // TODO [MAJOR]: replace AndroidDateUtils.getCurrentSentryDateTime() with
+  // options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   @Override
   public void onActivityPreStarted(final @NotNull Activity activity) {
     final ActivityLifecycleSpanHelper helper = activitySpanHelpers.get(activity);
@@ -672,6 +678,9 @@ public void onActivityPostResumed(@NotNull Activity activity) {
     // empty override, required to avoid a api-level breaking super.onActivityPostResumed() calls
   }
 
+  // TODO [MAJOR]: replace AndroidDateUtils.getCurrentSentryDateTime() with
+  // options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   @Override
   public void onActivityPrePaused(@NotNull Activity activity) {
     // only executed if API >= 29 otherwise it happens on onActivityPaused
@@ -1094,6 +1103,9 @@ private void onHeadlessAppStart() {
    * Standalone-only: this is only registered as a listener when standalone app start tracing is
    * enabled.
    */
+  // TODO [MAJOR]: replace AndroidDateUtils.getCurrentSentryDateTime() with
+  // options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   private @Nullable AppStartExtension.ExtendedAppStart onExtendAppStartRequested() {
     if (scopes == null
         || options == null
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidDateUtils.java b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidDateUtils.java
index 55c1e2c7ce..6e8d940e21 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidDateUtils.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidDateUtils.java
@@ -17,7 +17,10 @@ public final class AndroidDateUtils {
    * invocations.
    *
    * @return the UTC SentryDate
+   * @deprecated use {@code options.getDateProvider()}. This static holder cannot be configured or
+   *     stubbed, which is why the note above already asked callers to prefer the options.
    */
+  @Deprecated
   public static @NotNull SentryDate getCurrentSentryDateTime() {
     return dateProvider.now();
   }
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidOptionsInitializer.java b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidOptionsInitializer.java
index 8bcd16b096..48c517c0b1 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidOptionsInitializer.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidOptionsInitializer.java
@@ -401,6 +401,9 @@ private static void setupProfiler(
     }
   }
 
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider or
+  // MonotonicClock
+  @SuppressWarnings("deprecation")
   static void installDefaultIntegrations(
       final @NotNull Context context,
       final @NotNull SentryAndroidOptions options,
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidProfiler.java b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidProfiler.java
index 3f569df537..6f9501e439 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidProfiler.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidProfiler.java
@@ -117,6 +117,8 @@ public AndroidProfiler(
   }
 
   @SuppressLint("NewApi")
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public @Nullable ProfileStartData start() {
     try (final @NotNull ISentryLifecycleToken ignored = lock.acquire()) {
       // intervalUs is 0 only if there was a problem in the init
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidTransactionProfiler.java b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidTransactionProfiler.java
index e44ed746a0..baffeb2851 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/AndroidTransactionProfiler.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/AndroidTransactionProfiler.java
@@ -89,6 +89,8 @@ public AndroidTransactionProfiler(
         () -> executorService);
   }
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public AndroidTransactionProfiler(
       final @NotNull Context context,
       final @NotNull BuildInfoProvider buildInfoProvider,
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/AnrV2Integration.java b/sentry-android-core/src/main/java/io/sentry/android/core/AnrV2Integration.java
index e28a08f7e8..348f000855 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/AnrV2Integration.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/AnrV2Integration.java
@@ -50,6 +50,9 @@ public class AnrV2Integration implements Integration, Closeable {
   private final @NotNull ICurrentDateProvider dateProvider;
   private @Nullable SentryAndroidOptions options;
 
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider; the epoch
+  // comparison it feeds must stay wall time
+  @SuppressWarnings("deprecation")
   public AnrV2Integration(final @NotNull Context context) {
     // using CurrentDateProvider instead of AndroidCurrentDateProvider as AppExitInfo uses
     // System.currentTimeMillis
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/AppComponentsBreadcrumbsIntegration.java b/sentry-android-core/src/main/java/io/sentry/android/core/AppComponentsBreadcrumbsIntegration.java
index 43ed3422cd..5f0fbfb6f4 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/AppComponentsBreadcrumbsIntegration.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/AppComponentsBreadcrumbsIntegration.java
@@ -34,6 +34,8 @@ public final class AppComponentsBreadcrumbsIntegration
   private @Nullable IScopes scopes;
   private @Nullable SentryAndroidOptions options;
 
+  // TODO [MAJOR]: replace AndroidCurrentDateProvider with MonotonicClock
+  @SuppressWarnings("deprecation")
   private final @NotNull Debouncer trimMemoryDebouncer =
       new Debouncer(AndroidCurrentDateProvider.getInstance(), DEBOUNCE_WAIT_TIME_MS, 0);
 
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/ApplicationExitInfoHistoryDispatcher.java b/sentry-android-core/src/main/java/io/sentry/android/core/ApplicationExitInfoHistoryDispatcher.java
index 155c9fab27..f3fbbf0f1b 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/ApplicationExitInfoHistoryDispatcher.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/ApplicationExitInfoHistoryDispatcher.java
@@ -36,6 +36,9 @@ final class ApplicationExitInfoHistoryDispatcher implements Runnable {
   private final @NotNull ApplicationExitInfoPolicy policy;
   private final long threshold;
 
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider; the epoch
+  // comparison it feeds must stay wall time
+  @SuppressWarnings("deprecation")
   ApplicationExitInfoHistoryDispatcher(
       final @NotNull Context context,
       final @NotNull IScopes scopes,
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/LifecycleWatcher.java b/sentry-android-core/src/main/java/io/sentry/android/core/LifecycleWatcher.java
index ca874e714e..91a0ead7c0 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/LifecycleWatcher.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/LifecycleWatcher.java
@@ -28,6 +28,9 @@ final class LifecycleWatcher implements AppState.AppStateListener {
 
   private final @NotNull ICurrentDateProvider currentDateProvider;
 
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider; the epoch
+  // comparison it feeds must stay wall time
+  @SuppressWarnings("deprecation")
   LifecycleWatcher(
       final @NotNull IScopes scopes,
       final long sessionIntervalMillis,
@@ -60,6 +63,9 @@ public void onForeground() {
     addAppBreadcrumb("foreground");
   }
 
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider; the epoch
+  // comparison it feeds must stay wall time
+  @SuppressWarnings("deprecation")
   private void startSession() {
     cancelTask();
 
@@ -90,6 +96,9 @@ private void startSession() {
 
   // App went to background and triggered this callback after 700ms
   // as no new screen was shown
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider; the epoch
+  // comparison it feeds must stay wall time
+  @SuppressWarnings("deprecation")
   @Override
   public void onBackground() {
     final long currentTimeMillis = currentDateProvider.getCurrentTimeMillis();
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/ScreenshotEventProcessor.java b/sentry-android-core/src/main/java/io/sentry/android/core/ScreenshotEventProcessor.java
index dd0e259f93..3cf54ddf15 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/ScreenshotEventProcessor.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/ScreenshotEventProcessor.java
@@ -47,6 +47,8 @@ public final class ScreenshotEventProcessor implements EventProcessor {
   private final boolean isReplayAvailable;
   private final AtomicBoolean isReplayModuleAbsenceLogged = new AtomicBoolean(false);
 
+  // TODO [MAJOR]: replace AndroidCurrentDateProvider with MonotonicClock
+  @SuppressWarnings("deprecation")
   public ScreenshotEventProcessor(
       final @NotNull SentryAndroidOptions options,
       final @NotNull BuildInfoProvider buildInfoProvider,
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/SystemEventsBreadcrumbsIntegration.java b/sentry-android-core/src/main/java/io/sentry/android/core/SystemEventsBreadcrumbsIntegration.java
index 18ff901b0e..7bf35c86c8 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/SystemEventsBreadcrumbsIntegration.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/SystemEventsBreadcrumbsIntegration.java
@@ -298,6 +298,9 @@ final class SystemEventsBroadcastReceiver extends BroadcastReceiver {
     private static final long DEBOUNCE_WAIT_TIME_MS = 60 * 1000;
     private final @NotNull IScopes scopes;
     private final @NotNull SentryAndroidOptions options;
+
+    // TODO [MAJOR]: replace AndroidCurrentDateProvider with MonotonicClock
+    @SuppressWarnings("deprecation")
     private final @NotNull Debouncer batteryChangedDebouncer =
         new Debouncer(AndroidCurrentDateProvider.getInstance(), DEBOUNCE_WAIT_TIME_MS, 0);
 
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/TombstoneIntegration.java b/sentry-android-core/src/main/java/io/sentry/android/core/TombstoneIntegration.java
index d6d6a7767c..6ea5b42448 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/TombstoneIntegration.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/TombstoneIntegration.java
@@ -54,6 +54,9 @@ public class TombstoneIntegration implements Integration, Closeable {
   private final @NotNull ICurrentDateProvider dateProvider;
   private @Nullable SentryAndroidOptions options;
 
+  // TODO [MAJOR]: replace CurrentDateProvider (wall clock) with SentryDateProvider; the epoch
+  // comparison it feeds must stay wall time
+  @SuppressWarnings("deprecation")
   public TombstoneIntegration(final @NotNull Context context) {
     // using CurrentDateProvider instead of AndroidCurrentDateProvider as AppExitInfo uses
     // System.currentTimeMillis
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/ViewHierarchyEventProcessor.java b/sentry-android-core/src/main/java/io/sentry/android/core/ViewHierarchyEventProcessor.java
index 7090985a38..62d8edcfb7 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/ViewHierarchyEventProcessor.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/ViewHierarchyEventProcessor.java
@@ -46,6 +46,8 @@ public final class ViewHierarchyEventProcessor implements EventProcessor {
   private static final long DEBOUNCE_WAIT_TIME_MS = 2000;
   private static final int DEBOUNCE_MAX_EXECUTIONS = 3;
 
+  // TODO [MAJOR]: replace AndroidCurrentDateProvider with MonotonicClock
+  @SuppressWarnings("deprecation")
   public ViewHierarchyEventProcessor(final @NotNull SentryAndroidOptions options) {
     this.options = Objects.requireNonNull(options, "SentryAndroidOptions is required");
     this.debouncer =
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/cache/AndroidEnvelopeCache.java b/sentry-android-core/src/main/java/io/sentry/android/core/cache/AndroidEnvelopeCache.java
index 0373c39dee..e3b24ed655 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/cache/AndroidEnvelopeCache.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/cache/AndroidEnvelopeCache.java
@@ -38,6 +38,8 @@ public final class AndroidEnvelopeCache extends EnvelopeCache {
 
   private final @NotNull ICurrentDateProvider currentDateProvider;
 
+  // TODO [MAJOR]: replace AndroidCurrentDateProvider with MonotonicClock
+  @SuppressWarnings("deprecation")
   public AndroidEnvelopeCache(final @NotNull SentryAndroidOptions options) {
     this(options, AndroidCurrentDateProvider.getInstance());
   }
@@ -63,6 +65,9 @@ public boolean storeEnvelope(@NotNull SentryEnvelope envelope, @NotNull Hint hin
     return storeInternalAndroid(envelope, hint);
   }
 
+  // TODO [MAJOR]: this reading must stay paired with AppStartMetrics.getStartUptimeMs(),
+  // which is SystemClock.uptimeMillis(), so MonotonicClock is not a drop-in replacement
+  @SuppressWarnings("deprecation")
   private boolean storeInternalAndroid(@NotNull SentryEnvelope envelope, @NotNull Hint hint) {
     final boolean didStore = super.storeEnvelope(envelope, hint);
 
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/AndroidCurrentDateProvider.java b/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/AndroidCurrentDateProvider.java
index cdf66c319a..3e8e68a67f 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/AndroidCurrentDateProvider.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/AndroidCurrentDateProvider.java
@@ -4,11 +4,24 @@
 import io.sentry.transport.ICurrentDateProvider;
 import org.jetbrains.annotations.ApiStatus;
 
+/**
+ * An uptime clock: {@link SystemClock#uptimeMillis()} excludes time the device spent in deep sleep,
+ * which the name does not say.
+ *
+ * <p>Superseded by {@link io.sentry.time.MonotonicClock}, which counts deep sleep and says so in
+ * its name.
+ */
 @ApiStatus.Internal
 public final class AndroidCurrentDateProvider implements ICurrentDateProvider {
 
+  @SuppressWarnings("deprecation")
   private static final ICurrentDateProvider instance = new AndroidCurrentDateProvider();
 
+  /**
+   * @deprecated use {@link io.sentry.time.MonotonicClock} to measure an interval.
+   */
+  @Deprecated
+  @SuppressWarnings("deprecation")
   public static ICurrentDateProvider getInstance() {
     return instance;
   }
@@ -16,6 +29,7 @@ public static ICurrentDateProvider getInstance() {
   private AndroidCurrentDateProvider() {}
 
   @Override
+  @SuppressWarnings("deprecation")
   public long getCurrentTimeMillis() {
     return SystemClock.uptimeMillis();
   }
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/Debouncer.java b/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/Debouncer.java
index 8808947c0c..c0d6cd719a 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/Debouncer.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/internal/util/Debouncer.java
@@ -30,6 +30,8 @@ public Debouncer(
    * @return true if the execution should be debounced due to maxExecutions executions being made
    *     within waitTimeMs, otherwise false.
    */
+  // TODO [MAJOR]: replace AndroidCurrentDateProvider with MonotonicClock
+  @SuppressWarnings("deprecation")
   public boolean checkForDebounce() {
     final long now = timeProvider.getCurrentTimeMillis();
     if (lastExecutionTime.get() == 0 || (lastExecutionTime.get() + waitTimeMs) <= now) {
diff --git a/sentry-android-core/src/main/java/io/sentry/android/core/performance/ActivityLifecycleSpanHelper.java b/sentry-android-core/src/main/java/io/sentry/android/core/performance/ActivityLifecycleSpanHelper.java
index accb56db0d..ae58370a16 100644
--- a/sentry-android-core/src/main/java/io/sentry/android/core/performance/ActivityLifecycleSpanHelper.java
+++ b/sentry-android-core/src/main/java/io/sentry/android/core/performance/ActivityLifecycleSpanHelper.java
@@ -69,6 +69,9 @@ public void createAndStopOnStartSpan(final @Nullable ISpan parentSpan) {
     return onStartStartTimestamp;
   }
 
+  // TODO [MAJOR]: replace AndroidDateUtils.getCurrentSentryDateTime() with
+  // options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public void saveSpanToAppStartMetrics() {
     if (onCreateSpan == null || onStartSpan == null) {
       return;
diff --git a/sentry/src/main/java/io/sentry/Breadcrumb.java b/sentry/src/main/java/io/sentry/Breadcrumb.java
index fff6954ee5..dc53fa172b 100644
--- a/sentry/src/main/java/io/sentry/Breadcrumb.java
+++ b/sentry/src/main/java/io/sentry/Breadcrumb.java
@@ -97,7 +97,8 @@ public Breadcrumb(final long timestamp) {
    * @param options - the sentry options
    * @return the breadcrumb
    */
-  @SuppressWarnings("unchecked")
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings({"unchecked", "deprecation"})
   public static Breadcrumb fromMap(
       @NotNull Map<String, Object> map, @NotNull SentryOptions options) {
 
@@ -882,7 +883,8 @@ public void serialize(final @NotNull ObjectWriter writer, final @NotNull ILogger
   }
 
   public static final class Deserializer implements JsonDeserializer<Breadcrumb> {
-    @SuppressWarnings("unchecked")
+    // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+    @SuppressWarnings({"unchecked", "deprecation"})
     @Override
     public @NotNull Breadcrumb deserialize(@NotNull ObjectReader reader, @NotNull ILogger logger)
         throws Exception {
diff --git a/sentry/src/main/java/io/sentry/DateUtils.java b/sentry/src/main/java/io/sentry/DateUtils.java
index fcba83fbe0..fa1c51a472 100644
--- a/sentry/src/main/java/io/sentry/DateUtils.java
+++ b/sentry/src/main/java/io/sentry/DateUtils.java
@@ -19,8 +19,12 @@ private DateUtils() {}
    * Get the current Date (UTC)
    *
    * @return the UTC Date
+   * @deprecated use {@code options.getDateProvider().now()}, which is configurable and resolves
+   *     finer than a millisecond.
    */
-  @SuppressWarnings("JavaUtilDate")
+  @Deprecated
+  // not @InlineMe: the replacement is options.getDateProvider().now(), not this method's body
+  @SuppressWarnings({"JavaUtilDate", "InlineMeSuggester"})
   public static @NotNull Date getCurrentDateTime() {
     return new Date();
   }
diff --git a/sentry/src/main/java/io/sentry/ProfilingTraceData.java b/sentry/src/main/java/io/sentry/ProfilingTraceData.java
index aee42fa07d..f19f9414ce 100644
--- a/sentry/src/main/java/io/sentry/ProfilingTraceData.java
+++ b/sentry/src/main/java/io/sentry/ProfilingTraceData.java
@@ -75,6 +75,8 @@ private ProfilingTraceData() {
     this(new File("dummy"), NoOpTransaction.getInstance());
   }
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public ProfilingTraceData(
       final @NotNull File traceFile, final @NotNull ITransaction transaction) {
     this(
diff --git a/sentry/src/main/java/io/sentry/SentryEvent.java b/sentry/src/main/java/io/sentry/SentryEvent.java
index 8b8575fe7e..7a1edde8cc 100644
--- a/sentry/src/main/java/io/sentry/SentryEvent.java
+++ b/sentry/src/main/java/io/sentry/SentryEvent.java
@@ -103,6 +103,8 @@ public SentryEvent(final @Nullable Throwable throwable) {
     this.throwable = throwable;
   }
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public SentryEvent() {
     this(new SentryId(), DateUtils.getCurrentDateTime());
   }
diff --git a/sentry/src/main/java/io/sentry/SentryReplayEvent.java b/sentry/src/main/java/io/sentry/SentryReplayEvent.java
index 0ed9dbf72f..87188210b0 100644
--- a/sentry/src/main/java/io/sentry/SentryReplayEvent.java
+++ b/sentry/src/main/java/io/sentry/SentryReplayEvent.java
@@ -52,6 +52,8 @@ public static final class Deserializer implements JsonDeserializer<ReplayType> {
   private @Nullable List<String> segmentNames;
   private @Nullable Map<String, Object> unknown;
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public SentryReplayEvent() {
     super();
     this.replayId = new SentryId();
diff --git a/sentry/src/main/java/io/sentry/Session.java b/sentry/src/main/java/io/sentry/Session.java
index 598fe994fd..a2296b5ebf 100644
--- a/sentry/src/main/java/io/sentry/Session.java
+++ b/sentry/src/main/java/io/sentry/Session.java
@@ -112,6 +112,8 @@ public Session(
     this.abnormalMechanism = abnormalMechanism;
   }
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public Session(
       @Nullable String distinctId,
       final @Nullable User user,
@@ -221,6 +223,8 @@ public boolean hasNonTerminatingUnhandledError() {
    *
    * @return whether the session was updated, i.e. false if it had already reached a terminal state
    */
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   @ApiStatus.Internal
   public boolean recordNonTerminatingUnhandledError() {
     try (final @NotNull ISentryLifecycleToken ignored = sessionLock.acquire()) {
@@ -242,6 +246,8 @@ public boolean recordNonTerminatingUnhandledError() {
   }
 
   /** Ends a session and update its values */
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public void end() {
     end(DateUtils.getCurrentDateTime());
   }
@@ -251,6 +257,8 @@ public void end() {
    *
    * @param timestamp the timestamp or null
    */
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public void end(final @Nullable Date timestamp) {
     try (final @NotNull ISentryLifecycleToken ignored = sessionLock.acquire()) {
       init = null;
@@ -301,6 +309,8 @@ public boolean update(
    * @param abnormalMechanism the mechanism which caused the session to be abnormal
    * @return if the session has been updated
    */
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   public boolean update(
       final @Nullable State status,
       final @Nullable String userAgent,
diff --git a/sentry/src/main/java/io/sentry/cache/EnvelopeCache.java b/sentry/src/main/java/io/sentry/cache/EnvelopeCache.java
index d3f473cfbc..393e29d904 100644
--- a/sentry/src/main/java/io/sentry/cache/EnvelopeCache.java
+++ b/sentry/src/main/java/io/sentry/cache/EnvelopeCache.java
@@ -279,6 +279,8 @@ private void tryEndPreviousSession(final @NotNull Hint hint) {
     }
   }
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   private void writeCrashMarkerFile() {
     final File crashMarkerFile = new File(options.getCacheDirPath(), CRASH_MARKER_FILE);
     try (final OutputStream outputStream = new FileOutputStream(crashMarkerFile)) {
diff --git a/sentry/src/main/java/io/sentry/clientreport/ClientReportRecorder.java b/sentry/src/main/java/io/sentry/clientreport/ClientReportRecorder.java
index ccd7c5dc40..eed58893c6 100644
--- a/sentry/src/main/java/io/sentry/clientreport/ClientReportRecorder.java
+++ b/sentry/src/main/java/io/sentry/clientreport/ClientReportRecorder.java
@@ -164,6 +164,8 @@ private long itemCountFromHeader(final @NotNull SentryEnvelopeItem envelopeItem)
     return itemCount != null ? itemCount : 1L;
   }
 
+  // TODO [MAJOR]: replace DateUtils.getCurrentDateTime() with options.getDateProvider().now()
+  @SuppressWarnings("deprecation")
   @Nullable
   ClientReport resetCountsAndGenerateClientReport() {
     final Date currentDate = DateUtils.getCurrentDateTime();
diff --git a/sentry/src/main/java/io/sentry/transport/CurrentDateProvider.java b/sentry/src/main/java/io/sentry/transport/CurrentDateProvider.java
index 9421baac50..855d9aabdc 100644
--- a/sentry/src/main/java/io/sentry/transport/CurrentDateProvider.java
+++ b/sentry/src/main/java/io/sentry/transport/CurrentDateProvider.java
@@ -2,11 +2,24 @@
 
 import org.jetbrains.annotations.ApiStatus;
 
+/**
+ * The wall clock, which jumps when the device time changes.
+ *
+ * <p>Superseded by {@link io.sentry.SentryDateProvider} for timestamps and {@link
+ * io.sentry.time.MonotonicClock} for intervals.
+ */
 @ApiStatus.Internal
 public final class CurrentDateProvider implements ICurrentDateProvider {
 
+  @SuppressWarnings("deprecation")
   private static final ICurrentDateProvider instance = new CurrentDateProvider();
 
+  /**
+   * @deprecated use {@link io.sentry.SentryDateProvider} for a timestamp, or {@link
+   *     io.sentry.time.MonotonicClock} to measure an interval.
+   */
+  @Deprecated
+  @SuppressWarnings("deprecation")
   public static ICurrentDateProvider getInstance() {
     return instance;
   }
@@ -14,6 +27,7 @@ public static ICurrentDateProvider getInstance() {
   private CurrentDateProvider() {}
 
   @Override
+  @SuppressWarnings("deprecation")
   public final long getCurrentTimeMillis() {
     return System.currentTimeMillis();
   }
diff --git a/sentry/src/main/java/io/sentry/transport/ICurrentDateProvider.java b/sentry/src/main/java/io/sentry/transport/ICurrentDateProvider.java
index b4f86cf2d3..2d5f1208a1 100644
--- a/sentry/src/main/java/io/sentry/transport/ICurrentDateProvider.java
+++ b/sentry/src/main/java/io/sentry/transport/ICurrentDateProvider.java
@@ -2,7 +2,13 @@
 
 import org.jetbrains.annotations.ApiStatus;
 
-/** Date Provider to make the Transport unit testable */
+/**
+ * Date Provider to make the Transport unit testable
+ *
+ * <p>Superseded by {@link io.sentry.time.MonotonicClock}. The name here does not say which clock
+ * the value comes from, and implementations disagreed: {@link CurrentDateProvider} returns wall
+ * time while {@code AndroidCurrentDateProvider} returns uptime, through this one type.
+ */
 @ApiStatus.Internal
 public interface ICurrentDateProvider {
 
@@ -10,6 +16,9 @@ public interface ICurrentDateProvider {
    * Returns the current time in millis
    *
    * @return the time in millis
+   * @deprecated use {@link io.sentry.time.MonotonicClock} to measure an interval, or {@link
+   *     io.sentry.SentryDateProvider} for a wall-clock timestamp.
    */
+  @Deprecated
   long getCurrentTimeMillis();
 }