diff --git a/lib/shared/chat-message-item-utils.js b/lib/shared/chat-message-item-utils.js
--- a/lib/shared/chat-message-item-utils.js
+++ b/lib/shared/chat-message-item-utils.js
@@ -8,6 +8,7 @@
   ComposableMessageInfo,
 } from '../types/message-types.js';
 import type { ThreadInfo } from '../types/minimally-encoded-thread-permissions-types.js';
+import { longAbsoluteDate } from '../utils/date-utils.js';
 
 type ChatMessageItemMessageInfo = ComposableMessageInfo | RobotextMessageInfo;
 
@@ -35,6 +36,10 @@
   return messageKey(item.messageInfo);
 }
 
+function chatMessageInfoItemTimestamp(item: BaseChatMessageInfoItem): string {
+  return longAbsoluteDate(item.messageInfo.time);
+}
+
 type BaseChatMessageItemForEngagementCheck = {
   +threadCreatedFromMessage: ?ThreadInfo,
   +reactions: ReactionInfo,
@@ -53,4 +58,8 @@
   );
 }
 
-export { chatMessageItemKey, chatMessageItemHasEngagement };
+export {
+  chatMessageItemKey,
+  chatMessageInfoItemTimestamp,
+  chatMessageItemHasEngagement,
+};
diff --git a/native/chat/message-header.react.js b/native/chat/message-header.react.js
--- a/native/chat/message-header.react.js
+++ b/native/chat/message-header.react.js
@@ -23,7 +23,7 @@
 function MessageHeader(props: Props): React.Node {
   const styles = useStyles(unboundStyles);
   const { item, focused, display } = props;
-  const { creator, time } = item.messageInfo;
+  const { creator } = item.messageInfo;
   const { isViewer } = creator;
 
   const route = useRoute();
@@ -84,14 +84,8 @@
       return null;
     }
 
-    return <Timestamp time={time} display={display} />;
-  }, [
-    display,
-    item.startsConversation,
-    messageInMessageList,
-    modalDisplay,
-    time,
-  ]);
+    return <Timestamp item={item} display={display} />;
+  }, [display, item, messageInMessageList, modalDisplay]);
 
   const containerStyle = React.useMemo(() => {
     if (!focused || modalDisplay) {
diff --git a/native/chat/message-result.react.js b/native/chat/message-result.react.js
--- a/native/chat/message-result.react.js
+++ b/native/chat/message-result.react.js
@@ -4,8 +4,8 @@
 import { Text, View } from 'react-native';
 import { ScrollView } from 'react-native-gesture-handler';
 
+import { chatMessageInfoItemTimestamp } from 'lib/shared/chat-message-item-utils.js';
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
-import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 
 import { type ChatNavigationProp } from './chat.react.js';
 import { MessageListContextProvider } from './message-list-types.js';
@@ -64,7 +64,7 @@
             shouldDisplayPinIndicator={false}
           />
           <Text style={styles.messageDate}>
-            {longAbsoluteDate(props.item.messageInfo.time)}
+            {chatMessageInfoItemTimestamp(props.item)}
           </Text>
         </View>
       </MessageListContextProvider>
diff --git a/native/chat/robotext-message-tooltip-button.react.js b/native/chat/robotext-message-tooltip-button.react.js
--- a/native/chat/robotext-message-tooltip-button.react.js
+++ b/native/chat/robotext-message-tooltip-button.react.js
@@ -123,7 +123,7 @@
           onInputBarMeasured={onInputBarMeasured}
         />
         <Animated.View style={headerStyle}>
-          <Timestamp time={item.messageInfo.time} display="modal" />
+          <Timestamp item={item} display="modal" />
         </Animated.View>
         {reactionSelectionPopover}
         <InnerRobotextMessage item={item} onPress={navigation.goBackOnce} />
diff --git a/native/chat/robotext-message.react.js b/native/chat/robotext-message.react.js
--- a/native/chat/robotext-message.react.js
+++ b/native/chat/robotext-message.react.js
@@ -58,9 +58,7 @@
 
   let timestamp = null;
   if (focused || item.startsConversation) {
-    timestamp = (
-      <Timestamp time={item.messageInfo.time} display="lowContrast" />
-    );
+    timestamp = <Timestamp item={item} display="lowContrast" />;
   }
 
   const styles = useStyles(unboundStyles);
diff --git a/native/chat/timestamp.react.js b/native/chat/timestamp.react.js
--- a/native/chat/timestamp.react.js
+++ b/native/chat/timestamp.react.js
@@ -2,15 +2,16 @@
 
 import * as React from 'react';
 
-import { longAbsoluteDate } from 'lib/utils/date-utils.js';
+import { chatMessageInfoItemTimestamp } from 'lib/shared/chat-message-item-utils.js';
 
 import SingleLine from '../components/single-line.react.js';
 import { useStyles } from '../themes/colors.js';
+import type { ChatMessageInfoItemWithHeight } from '../types/chat-types.js';
 
 export type DisplayType = 'lowContrast' | 'modal';
 
 type Props = {
-  +time: number,
+  +item: ChatMessageInfoItemWithHeight,
   +display: DisplayType,
 };
 function Timestamp(props: Props): React.Node {
@@ -24,8 +25,8 @@
   );
 
   const absoluteDate = React.useMemo(
-    () => longAbsoluteDate(props.time),
-    [props.time],
+    () => chatMessageInfoItemTimestamp(props.item),
+    [props.item],
   );
 
   const timestamp = React.useMemo(
diff --git a/web/chat/message.react.js b/web/chat/message.react.js
--- a/web/chat/message.react.js
+++ b/web/chat/message.react.js
@@ -4,9 +4,9 @@
 import * as React from 'react';
 
 import { type ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
+import { chatMessageInfoItemTimestamp } from 'lib/shared/chat-message-item-utils.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
-import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 
 import css from './chat-message-list.css';
 import { useEditModalContext } from './edit-message-provider.js';
@@ -27,7 +27,7 @@
   if (item.startsConversation) {
     conversationHeader = (
       <div className={css.conversationHeader}>
-        {longAbsoluteDate(item.messageInfo.time)}
+        {chatMessageInfoItemTimestamp(item)}
       </div>
     );
   }
diff --git a/web/components/message-result.react.js b/web/components/message-result.react.js
--- a/web/components/message-result.react.js
+++ b/web/components/message-result.react.js
@@ -6,8 +6,8 @@
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import { useStringForUser } from 'lib/hooks/ens-cache.js';
 import type { ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
+import { chatMessageInfoItemTimestamp } from 'lib/shared/chat-message-item-utils.js';
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
-import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 
 import css from './message-result.css';
 import { MessageListContext } from '../chat/message-list-types.js';
@@ -59,7 +59,7 @@
           </MessageListContext.Provider>
         </div>
         <div className={css.messageDate}>
-          {longAbsoluteDate(item.messageInfo.time)}
+          {chatMessageInfoItemTimestamp(item)}
         </div>
       </div>
     </div>
diff --git a/web/tooltips/tooltip-action-utils.js b/web/tooltips/tooltip-action-utils.js
--- a/web/tooltips/tooltip-action-utils.js
+++ b/web/tooltips/tooltip-action-utils.js
@@ -10,6 +10,7 @@
   ChatMessageInfoItem,
   ReactionInfo,
 } from 'lib/selectors/chat-selectors.js';
+import { chatMessageInfoItemTimestamp } from 'lib/shared/chat-message-item-utils.js';
 import { useCanEditMessage } from 'lib/shared/edit-messages-utils.js';
 import { createMessageReply } from 'lib/shared/message-utils.js';
 import { useCanCreateReactionFromMessage } from 'lib/shared/reaction-utils.js';
@@ -18,7 +19,6 @@
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
-import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 import { useCanToggleMessagePin } from 'lib/utils/message-pinning-utils.js';
 
 import LabelTooltip from './label-toolitp.react.js';
@@ -407,10 +407,7 @@
 }: UseMessageTooltipArgs): UseTooltipResult {
   const tooltipActions = useMessageTooltipActions(item, threadInfo);
 
-  const messageTimestamp = React.useMemo(() => {
-    const time = item.messageInfo.time;
-    return longAbsoluteDate(time);
-  }, [item.messageInfo.time]);
+  const messageTimestamp = chatMessageInfoItemTimestamp(item);
 
   const tooltipSize = React.useMemo(() => {
     if (typeof document === 'undefined') {