diff --git a/app/src/components/Archive.js b/app/src/components/Archive.js
index 2de33524..311f0d73 100644
--- a/app/src/components/Archive.js
+++ b/app/src/components/Archive.js
@@ -26,6 +26,7 @@ import {
     findPosterPath,
     HelpHeader,
     humanFileSize,
+    isoDatetimeToAgoPopup,
     isoDatetimeToString,
     mimetypeColor,
     PageContainer,
@@ -44,7 +45,7 @@ import {FileCards, FileRowTagIcon, FilesView} from "./Files";
 import Grid from "semantic-ui-react/dist/commonjs/collections/Grid";
 import _ from "lodash";
 import {Media, ThemeContext} from "../contexts/contexts";
-import {Button, Card, CardIcon, darkTheme, Header, Loader, Placeholder, Segment, Tab, TabPane} from "./Theme";
+import {Button, Card, CardIcon, darkTheme, Header, Loader, Placeholder, Popup, Segment, Tab, TabPane} from "./Theme";
 import {SortableTable} from "./SortableTable";
 import {taggedImageLabel, TagsSelector} from "../Tags";
 import {toast} from "react-semantic-toasts-2";
@@ -291,6 +292,9 @@ export function ArchiveCard({file}) {
     const domain = data ? data.domain : null;
     const domainUrl = `/archive?domain=${domain}`;
 
+    const title = file.title || data.url;
+    const header = <ExternalCardLink to={singlefileUrl} className='card-title-ellipsis'>{title}</ExternalCardLink>;
+    const dt = file.published_datetime || file.published_modified_datetime || file.modified;
     return <Card color={mimetypeColor(file.mimetype)}>
         <div>
             <ExternalCardLink to={singlefileUrl}>
@@ -300,9 +304,9 @@ export function ArchiveCard({file}) {
         <CardContent {...s}>
             <CardHeader>
                 <Container textAlign='left'>
-                    <ExternalCardLink to={singlefileUrl} className='card-title-ellipsis'>
-                        {file.title || data.url}
-                    </ExternalCardLink>
+                    <Popup on='hover'
+                           trigger={header}
+                           content={title}/>
                 </Container>
             </CardHeader>
             {domain &&
@@ -310,9 +314,7 @@ export function ArchiveCard({file}) {
                     <span {...s}>{domain}</span>
                 </CardLink>}
             <CardMeta {...s}>
-                <p>
-                    {isoDatetimeToString(file.published_datetime)}
-                </p>
+                {isoDatetimeToAgoPopup(dt, false)}
             </CardMeta>
             <CardDescription>
                 <Link to={`/archive/${data.id}`}>
diff --git a/app/src/components/Common.js b/app/src/components/Common.js
index 270cdd40..04481271 100644
--- a/app/src/components/Common.js
+++ b/app/src/components/Common.js
@@ -106,7 +106,7 @@ export function divmod(x, y) {
     return [Math.floor(x / y), x % y];
 }
 
-export function secondsElapsed(seconds) {
+export function secondsElapsed(seconds, short = true) {
     // Convert the provided seconds into a human-readable string of the time elapsed between the provided timestamp
     // and now.
     if (!seconds || seconds < 0) {
@@ -114,32 +114,47 @@ export function secondsElapsed(seconds) {
     }
 
     // Get seconds elapsed between now and `seconds` which is a UTC epoch.
-    const localNow = (new Date()).getTime();
+    const localNow = (new Date()).getTime() / 1000;
 
     let years;
     let days;
     let hours;
     let minutes;
 
-    seconds = Math.abs((localNow / 1000) - seconds);
+    seconds = Math.abs(localNow - seconds);
     [years, seconds] = divmod(seconds, secondsToYears);
     [days, seconds] = divmod(seconds, secondsToDays);
     [hours, seconds] = divmod(seconds, secondsToHours);
     [minutes, seconds] = divmod(seconds, secondsToMinutes);
     seconds = Math.floor(seconds);
 
-    if (years > 0 && days > 30) {
-        return `${years}y${days}d`;
-    } else if (years > 0) {
-        return `${years}y`;
-    } else if (days > 0) {
-        return `${days}d`;
-    } else if (hours > 0) {
-        return `${hours}h`;
-    } else if (minutes > 0) {
-        return `${minutes}m`;
+    if (short) {
+        if (years > 0 && days > 30) {
+            return `${years}y${days}d`;
+        } else if (years > 0) {
+            return `${years}y`;
+        } else if (days > 0) {
+            return `${days}d`;
+        } else if (hours > 0) {
+            return `${hours}h`;
+        } else if (minutes > 0) {
+            return `${minutes}m`;
+        }
+        return `${seconds}s`
+    } else {
+        if (years > 0 && days > 30) {
+            return `${years} years ${days} days`;
+        } else if (years > 0) {
+            return `${years} years`;
+        } else if (days > 0) {
+            return `${days} days`;
+        } else if (hours > 0) {
+            return `${hours} hours`;
+        } else if (minutes > 0) {
+            return `${minutes} minutes`;
+        }
+        return `${seconds} seconds`
     }
-    return `${seconds}s`
 }
 
 export function secondsToElapsedPopup(seconds) {
@@ -160,6 +175,21 @@ export function isoDatetimeToElapsedPopup(dt) {
     return secondsToElapsedPopup(d.getTime() / 1000);
 }
 
+export function isoDatetimeToAgoPopup(dt, short = true) {
+    const seconds = (new Date(dt)).getTime() / 1000;
+    // Return a Popup which allows the user see a more detailed timestamp when hovering.
+    const elapsed = secondsElapsed(seconds, short);
+    if (seconds === 0 || !elapsed) {
+        return <></>;
+    }
+    const trigger = <span>{isoDatetimeToString(dt)}</span>;
+    return <Popup
+        content={<span>{elapsed} ago</span>}
+        on='hover'
+        trigger={trigger}
+    />
+}
+
 export function secondsToHMS(totalSeconds) {
     let hours = Math.floor(totalSeconds / 3600);
     totalSeconds -= hours * 3600;
diff --git a/app/src/components/Files.js b/app/src/components/Files.js
index 50eb551e..dcb9676c 100644
--- a/app/src/components/Files.js
+++ b/app/src/components/Files.js
@@ -24,6 +24,7 @@ import {
     findPosterPath,
     HandPointMessage,
     humanFileSize,
+    isoDatetimeToAgoPopup,
     isoDatetimeToString,
     mimetypeColor,
     PageContainer,
@@ -57,6 +58,7 @@ import {
     ModalContent,
     ModalHeader,
     Placeholder,
+    Popup,
     Progress,
     Segment
 } from "./Theme";
@@ -77,14 +79,18 @@ function EbookCard({file}) {
     const viewerUrl = isEpub ? `/epub/epub.html?url=${downloadUrl}` : null;
 
     const color = mimetypeColor(file.mimetype);
+    const title = file.title || file.stem || file.name;
+    const header = <ExternalCardLink to={viewerUrl || downloadUrl} className='card-title-ellipsis'>
+        {title}
+    </ExternalCardLink>;
     return <Card color={color}>
         <CardPoster file={file} preview={true}/>
         <CardContent {...s}>
             <CardHeader>
                 <Container textAlign='left'>
-                    <ExternalCardLink to={viewerUrl || downloadUrl} className='card-title-ellipsis'>
-                        {file.title || file.stem || file.name}
-                    </ExternalCardLink>
+                    <Popup on='hover'
+                           trigger={header}
+                           content={title}/>
                 </Container>
             </CardHeader>
             <CardMeta>
@@ -100,18 +106,23 @@ function ImageCard({file}) {
     const {s} = useContext(ThemeContext);
     const url = `/media/${encodeMediaPath(file.primary_path)}`;
 
+    const title = file.title || file.stem || file.primary_path;
+    const header = <ExternalCardLink to={url} className='no-link-underscore card-link'>
+        <p>{textEllipsis(title)}</p>
+    </ExternalCardLink>;
+    const dt = file.published_datetime || file.published_modified_datetime || file.modified;
     return <Card color={mimetypeColor(file.mimetype)}>
         <PreviewLink file={file}>
             <CardPoster file={file}/>
         </PreviewLink>
         <CardContent {...s}>
             <CardHeader>
-                <ExternalCardLink to={url} className='no-link-underscore card-link'>
-                    <p>{textEllipsis(file.title || file.stem || file.primary_path)}</p>
-                </ExternalCardLink>
+                <Popup on='hover'
+                       trigger={header}
+                       content={title}/>
             </CardHeader>
             <CardMeta {...s}>
-                <p>{isoDatetimeToString(file.modified / 1000)}</p>
+                <p>{isoDatetimeToAgoPopup(dt, false)}</p>
             </CardMeta>
             <CardDescription {...s}>
                 <p>{humanFileSize(file.size)}</p>
@@ -142,16 +153,21 @@ function FileCard({file}) {
     const color = mimetypeColor(file.mimetype);
     const size = file.size !== null && file.size !== undefined ? humanFileSize(file.size) : null;
 
+    const title = file.title || file.name || file.primary_path;
+    const header = <ExternalCardLink to={downloadUrl} className='card-title-ellipsis'>
+        {title}
+    </ExternalCardLink>;
+    const dt = file.published_datetime || file.published_modified_datetime || file.modified;
     return <Card color={color}>
         <CardPoster to={downloadUrl} file={file}/>
         <CardContent {...s}>
             <CardHeader>
-                <ExternalCardLink to={downloadUrl} className='card-title-ellipsis'>
-                    {file.title || file.name || file.primary_path}
-                </ExternalCardLink>
+                <Popup on='hover'
+                       trigger={header}
+                       content={title}/>
             </CardHeader>
             {author && <b {...s}>{author}</b>}
-            <p>{isoDatetimeToString(file.published_datetime) || isoDatetimeToString(file.modified)}</p>
+            <p>{isoDatetimeToAgoPopup(dt, false)}</p>
             <p>{size}</p>
         </CardContent>
     </Card>
diff --git a/app/src/components/Videos.js b/app/src/components/Videos.js
index d2bbb5f6..93e4fd6c 100644
--- a/app/src/components/Videos.js
+++ b/app/src/components/Videos.js
@@ -12,7 +12,7 @@ import {
     FileIcon,
     findPosterPath,
     humanFileSize,
-    humanNumber,
+    humanNumber, isoDatetimeToAgoPopup,
     isoDatetimeToString,
     mimetypeColor,
     PageContainer,
@@ -31,7 +31,6 @@ import {
     CardDescription,
     CardHeader,
     Container,
-    Dimmer,
     Image,
     PlaceholderHeader,
     PlaceholderLine,
@@ -44,7 +43,7 @@ import {useChannel, useSearchOrder, useSearchVideos, useVideo, useVideoStatistic
 import {FileRowTagIcon, FilesView} from "./Files";
 import Grid from "semantic-ui-react/dist/commonjs/collections/Grid";
 import Icon from "semantic-ui-react/dist/commonjs/elements/Icon";
-import {Button, Card, Header, Loader, Placeholder, Segment, Statistic, StatisticGroup} from "./Theme";
+import {Button, Card, Header, Loader, Placeholder, Popup, Segment, Statistic, StatisticGroup} from "./Theme";
 import {deleteVideos} from "../api";
 import {Media, QueryContext, ThemeContext} from "../contexts/contexts";
 import _ from "lodash";
@@ -309,7 +308,6 @@ export function VideoCard({file}) {
     // Default to video FilePreview for lone video files.
     let video_url;
 
-    const published_datetime = isoDatetimeToString(file.published_datetime);
     // A video may not have a channel.
     const channel = video.channel ? video.channel : null;
     let channel_url = null;
@@ -324,8 +322,8 @@ export function VideoCard({file}) {
 
     let poster = <CardPoster to={video_url} file={file}/>;
 
-    let header = <span {...s}
-                       className='card-title-ellipsis'>{file.title || file.name || video.stem || video.name}</span>;
+    const title = file.title || file.name || video.stem || video.name;
+    let header = <span {...s} className='card-title-ellipsis'>{title}</span>;
     if (video_url) {
         // Link to Channel-Video page or Video page.
         header = <Link to={video_url} className="no-link-underscore card-link">{header}</Link>;
@@ -343,7 +341,9 @@ export function VideoCard({file}) {
         <CardContent {...s}>
             <CardHeader>
                 <Container textAlign='left'>
-                    {header}
+                    <Popup on='hover'
+                           trigger={header}
+                           content={title}/>
                 </Container>
             </CardHeader>
             <CardDescription>
@@ -351,7 +351,7 @@ export function VideoCard({file}) {
                     {channel && <Link to={channel_url} className="no-link-underscore card-link">
                         <b {...s}>{channel.name}</b>
                     </Link>}
-                    <p {...s}>{published_datetime}</p>
+                    <p {...s}>{isoDatetimeToAgoPopup(file.published_datetime, false)}</p>
                 </Container>
             </CardDescription>
         </CardContent>