diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62bbaabd38..8a8eea2d9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,10 @@
 - Sentry can now configure Log4j2 automatically for Spring Boot 3 when `sentry-log4j2` is on the classpath and Log4j2 Core is the active logging backend ([#6072](https://github.com/getsentry/sentry-java/pull/6072))
   - Disabled by default for now; enable it and configure levels the same way as described in the Spring Boot 4 entry above (`sentry.logging.enabled=true`)
 
+### Internal
+
+- Deprecate `AndroidCurrentDateProvider.getInstance()` in favor of `MonotonicTicker`, which counts time spent in deep sleep and cannot be confused with the epoch-based `CurrentDateProvider` ([#6103](https://github.com/getsentry/sentry-java/pull/6103))
+
 ## 8.56.0
 
 ### Behavioral Changes
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..e98c0afb2d 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: JAVA-729
+  @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/ScreenshotEventProcessor.java b/sentry-android-core/src/main/java/io/sentry/android/core/ScreenshotEventProcessor.java
index dd0e259f93..8c4b1feef7 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: JAVA-729
+  @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..3f45a9a9fb 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: JAVA-729
+    @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/ViewHierarchyEventProcessor.java b/sentry-android-core/src/main/java/io/sentry/android/core/ViewHierarchyEventProcessor.java
index 7090985a38..6d21edb3d0 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: JAVA-729
+  @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..f001c4947d 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: JAVA-729
+  @SuppressWarnings("deprecation")
   public AndroidEnvelopeCache(final @NotNull SentryAndroidOptions options) {
     this(options, AndroidCurrentDateProvider.getInstance());
   }
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..b93beb4f57 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 +4,27 @@
 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 neither the name nor the {@link ICurrentDateProvider} type says. {@link
+ * io.sentry.transport.CurrentDateProvider} implements that same type with epoch milliseconds, so a
+ * call site declaring the interface accepts either, and the two disagree by however long the device
+ * has been suspended.
+ *
+ * <p>Superseded by {@link io.sentry.time.MonotonicTicker}, which counts deep sleep and says in its
+ * name that only differences between its own ticks are meaningful. The annotation sits on {@link
+ * #getInstance()}, the only way in, because a deprecated type warns on every import and an import
+ * cannot carry a {@code @SuppressWarnings}.
+ */
 @ApiStatus.Internal
 public final class AndroidCurrentDateProvider implements ICurrentDateProvider {
 
   private static final ICurrentDateProvider instance = new AndroidCurrentDateProvider();
 
+  /**
+   * @deprecated use {@link io.sentry.time.MonotonicTicker} to measure an interval.
+   */
+  @Deprecated
   public static ICurrentDateProvider getInstance() {
     return instance;
   }