diff --git a/client/src/javascript/components/general/Duration.tsx b/client/src/javascript/components/general/Duration.tsx
index 0b0cdac1..5791b720 100644
--- a/client/src/javascript/components/general/Duration.tsx
+++ b/client/src/javascript/components/general/Duration.tsx
@@ -1,17 +1,17 @@
 import {FormattedMessage} from 'react-intl';
 import * as React from 'react';
 
-import type {Duration as DurationType} from '@shared/types/Torrent';
+import formatUtil from '@shared/util/formatUtil';
 
 interface DurationProps {
   suffix?: React.ReactNode;
-  value: -1 | DurationType;
+  value: number;
 }
 
 const Duration: React.FC<DurationProps> = (props: DurationProps) => {
-  const {suffix, value: duration} = props;
+  const {suffix, value} = props;
 
-  if (duration == null) {
+  if (value == null) {
     return null;
   }
 
@@ -22,6 +22,8 @@ const Duration: React.FC<DurationProps> = (props: DurationProps) => {
     suffixElement = <span className="duration--segment">{suffix}</span>;
   }
 
+  const duration = value === -1 ? -1 : formatUtil.secondsToDuration(value);
+
   if (duration === -1) {
     content = <FormattedMessage id="unit.time.infinity" />;
   } else if (duration.years != null && duration.years > 0) {
diff --git a/client/src/javascript/components/sidebar/TransferRateDetails.tsx b/client/src/javascript/components/sidebar/TransferRateDetails.tsx
index e5efcc6e..0840a72a 100644
--- a/client/src/javascript/components/sidebar/TransferRateDetails.tsx
+++ b/client/src/javascript/components/sidebar/TransferRateDetails.tsx
@@ -3,7 +3,6 @@ import {Component} from 'react';
 import {defineMessages, injectIntl, WrappedComponentProps} from 'react-intl';
 import dayjs from 'dayjs';
 import duration from 'dayjs/plugin/duration';
-import formatUtil from '@shared/util/formatUtil';
 import {observer} from 'mobx-react';
 
 import type {TransferDirection} from '@shared/types/TransferData';
@@ -71,14 +70,12 @@ class TransferRateDetails extends Component<TransferRateDetailsProps> {
     });
 
     if (inspectorPoint?.nearestTimestamp != null) {
-      const currentTime = dayjs(Date.now());
-      const durationSummary = formatUtil.secondsToDuration(
-        dayjs.duration(currentTime.diff(dayjs(inspectorPoint.nearestTimestamp))).asSeconds(),
-      );
-
       timestamp = (
         <div className={timestampClasses}>
-          <Duration suffix={intl.formatMessage(messages.ago)} value={durationSummary} />
+          <Duration
+            suffix={intl.formatMessage(messages.ago)}
+            value={dayjs.duration(dayjs(Date.now()).diff(dayjs(inspectorPoint.nearestTimestamp))).asSeconds()}
+          />
         </div>
       );
     }
diff --git a/client/src/javascript/util/sortTorrents.ts b/client/src/javascript/util/sortTorrents.ts
index 2536530f..4fe11ad6 100644
--- a/client/src/javascript/util/sortTorrents.ts
+++ b/client/src/javascript/util/sortTorrents.ts
@@ -27,7 +27,7 @@ function sortTorrents(torrents: Array<TorrentProperties>, sortBy: Readonly<Flood
           if (p.eta === -1) {
             return Infinity;
           }
-          return p.eta.cumSeconds;
+          return p.eta;
         },
       } as SortRule);
       break;
diff --git a/server/services/qBittorrent/clientGatewayService.ts b/server/services/qBittorrent/clientGatewayService.ts
index fe86ce6f..dca2fbb9 100644
--- a/server/services/qBittorrent/clientGatewayService.ts
+++ b/server/services/qBittorrent/clientGatewayService.ts
@@ -24,7 +24,6 @@ import type {SetClientSettingsOptions} from '@shared/types/api/client';
 
 import ClientGatewayService from '../interfaces/clientGatewayService';
 import ClientRequestManager from './clientRequestManager';
-import formatUtil from '../../../shared/util/formatUtil';
 import {getDomainsFromURLs} from '../../util/torrentPropertiesUtil';
 import {
   getTorrentPeerPropertiesFromFlags,
@@ -244,7 +243,7 @@ class QBittorrentClientGatewayService extends ClientGatewayService {
                 directory: info.save_path,
                 downRate: info.dlspeed,
                 downTotal: info.downloaded,
-                eta: info.eta === -1 ? -1 : formatUtil.secondsToDuration(info.eta),
+                eta: info.eta,
                 hash: info.hash,
                 isMultiFile: false,
                 isPrivate: false,
diff --git a/server/services/rTorrent/util/torrentPropertiesUtil.ts b/server/services/rTorrent/util/torrentPropertiesUtil.ts
index f95fe6ce..8bdbeaec 100644
--- a/server/services/rTorrent/util/torrentPropertiesUtil.ts
+++ b/server/services/rTorrent/util/torrentPropertiesUtil.ts
@@ -1,4 +1,3 @@
-import formatUtil from '../../../../shared/util/formatUtil';
 import truncateTo from './numberUtils';
 
 import type {TorrentProperties} from '../../../../shared/types/Torrent';
@@ -14,7 +13,7 @@ export const getTorrentETAFromProperties = (
   }
 
   if (downRate > 0) {
-    return formatUtil.secondsToDuration((sizeBytes - bytesDone) / downRate);
+    return (sizeBytes - bytesDone) / downRate;
   }
 
   return -1;
diff --git a/shared/types/Torrent.ts b/shared/types/Torrent.ts
index 6ef93f17..e894369a 100644
--- a/shared/types/Torrent.ts
+++ b/shared/types/Torrent.ts
@@ -36,7 +36,8 @@ export interface TorrentProperties {
   directory: string;
   downRate: number;
   downTotal: number;
-  eta: -1 | Duration;
+  // Torrent ETA (seconds), -1 means infinity
+  eta: number;
   hash: string;
   isMultiFile: boolean;
   isPrivate: boolean;