diff --git a/app/src/main/kotlin/com/hippo/ehviewer/Settings.kt b/app/src/main/kotlin/com/hippo/ehviewer/Settings.kt
index 81e9bae2d..a6bcf2174 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/Settings.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/Settings.kt
@@ -157,6 +157,7 @@ object Settings : DataStorePreferences(null) {
     var searchCategory by intPref("search_pref", EhUtils.ALL_CATEGORY)
     var requestNewsTime by intPref("request_news_time", 0).observed { updateWhenRequestNewsChanges() }
     var updateIntervalDays by intPref("update_interval_days", 7)
+    var lastDawnDays by intPref("last_dawn_days", 0)
     var recentToplist by stringPref("recent_toplist", "11")
     var userAgent by stringPref("user_agent", CHROME_USER_AGENT)
     var recentDownloadLabel by stringOrNullPref("recent_download_label", null)
@@ -164,7 +165,6 @@ object Settings : DataStorePreferences(null) {
     var displayName by stringOrNullPref("display_name", null)
     var avatar by stringOrNullPref("avatar", null)
     var language by stringPref("app_language", "system").observed { updateWhenLocaleChanges() }
-    var lastDawnTime by longPref("last_dawn_time", 0)
     var lastUpdateTime by longPref("last_update_time", 0)
     var favDialogTheta by floatPref("fav_select_dialog_delta", 0F)
 
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/client/EhEngine.kt b/app/src/main/kotlin/com/hippo/ehviewer/client/EhEngine.kt
index b28cd2b7f..9783daefd 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/client/EhEngine.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/client/EhEngine.kt
@@ -50,6 +50,7 @@ import com.hippo.ehviewer.client.parser.TorrentResult
 import com.hippo.ehviewer.client.parser.VoteCommentResult
 import com.hippo.ehviewer.client.parser.VoteTagParser
 import com.hippo.ehviewer.dailycheck.showEventNotification
+import com.hippo.ehviewer.dailycheck.today
 import com.hippo.ehviewer.util.AppConfig
 import com.hippo.ehviewer.util.ReadableTime
 import com.hippo.ehviewer.util.StatusCodeException
@@ -68,7 +69,6 @@ import java.nio.channels.FileChannel
 import kotlin.math.ceil
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.delay
-import kotlinx.datetime.Clock
 import kotlinx.serialization.SerializationException
 import kotlinx.serialization.json.add
 import kotlinx.serialization.json.addJsonArray
@@ -217,7 +217,7 @@ object EhEngine {
     suspend fun getGalleryDetail(url: String) = ehRequest(url, EhUrl.referer).fetchUsingAsText {
         val eventPane = EventPaneParser.parse(this)
         if (eventPane != null) {
-            Settings.lastDawnTime = Clock.System.now().epochSeconds
+            Settings.lastDawnDays = today
             showEventNotification(eventPane)
         }
         GalleryDetailParser.parse(this)
diff --git a/app/src/main/kotlin/com/hippo/ehviewer/dailycheck/DailyCheckWork.kt b/app/src/main/kotlin/com/hippo/ehviewer/dailycheck/DailyCheckWork.kt
index 376103d06..1410b30c9 100644
--- a/app/src/main/kotlin/com/hippo/ehviewer/dailycheck/DailyCheckWork.kt
+++ b/app/src/main/kotlin/com/hippo/ehviewer/dailycheck/DailyCheckWork.kt
@@ -28,7 +28,6 @@ import java.time.Duration
 import java.util.concurrent.TimeUnit
 import kotlin.time.Duration.Companion.days
 import kotlinx.datetime.Clock
-import kotlinx.datetime.Instant
 import kotlinx.datetime.LocalDateTime
 import kotlinx.datetime.LocalTime
 import kotlinx.datetime.TimeZone
@@ -79,12 +78,13 @@ fun updateDailyCheckWork(context: Context) {
     }
 }
 
+val today
+    get() = (Clock.System.now().epochSeconds / 86400).toInt()
+
 suspend fun checkDawn() = runCatching {
-    val now = Clock.System.now()
-    val last = Instant.fromEpochSeconds(Settings.lastDawnTime)
-    if (EhCookieStore.hasSignedIn() && now > last + 1.days) {
+    if (EhCookieStore.hasSignedIn() && Settings.lastDawnDays != today) {
         EhEngine.getNews(true)?.let {
-            Settings.lastDawnTime = now.epochSeconds
+            Settings.lastDawnDays = today
             showEventNotification(it)
         }
     }