diff --git a/src/components/usage/RequestEventsDetailsCard.tsx b/src/components/usage/RequestEventsDetailsCard.tsx
index c5d13dc..2a69b22 100644
--- a/src/components/usage/RequestEventsDetailsCard.tsx
+++ b/src/components/usage/RequestEventsDetailsCard.tsx
@@ -9,6 +9,7 @@ import type { GeminiKeyConfig, ProviderKeyConfig, OpenAIProviderConfig } from '@
 import type { AuthFileItem } from '@/types/authFile';
 import type { CredentialInfo } from '@/types/sourceInfo';
 import { buildSourceInfoMap, resolveSourceDisplay } from '@/utils/sourceResolver';
+import { parseTimestampMs } from '@/utils/timestamp';
 import {
   collectUsageDetails,
   extractLatencyMs,
@@ -131,7 +132,7 @@ export function RequestEventsDetailsCard({
         const timestampMs =
           typeof detail.__timestampMs === 'number' && detail.__timestampMs > 0
             ? detail.__timestampMs
-            : Date.parse(timestamp);
+            : parseTimestampMs(timestamp);
         const date = Number.isNaN(timestampMs) ? null : new Date(timestampMs);
         const sourceRaw = String(detail.source ?? '').trim();
         const authIndexRaw = detail.auth_index as unknown;
diff --git a/src/features/authFiles/constants.ts b/src/features/authFiles/constants.ts
index 93e60c2..c8c1a4a 100644
--- a/src/features/authFiles/constants.ts
+++ b/src/features/authFiles/constants.ts
@@ -9,6 +9,7 @@ import iconKimiLight from '@/assets/icons/kimi-light.svg';
 import iconQwen from '@/assets/icons/qwen.svg';
 import iconVertex from '@/assets/icons/vertex.svg';
 import type { AuthFileItem } from '@/types';
+import { parseTimestamp } from '@/utils/timestamp';
 import {
   normalizeAuthIndex,
   normalizeUsageSourceId,
@@ -279,7 +280,7 @@ export const formatModified = (item: AuthFileItem): string => {
   const date =
     Number.isFinite(asNumber) && !Number.isNaN(asNumber)
       ? new Date(asNumber < 1e12 ? asNumber * 1000 : asNumber)
-      : new Date(String(raw));
+      : parseTimestamp(raw) ?? new Date(String(raw));
   return Number.isNaN(date.getTime()) ? '-' : date.toLocaleString();
 };
 
diff --git a/src/pages/hooks/useTraceResolver.ts b/src/pages/hooks/useTraceResolver.ts
index daab3f9..41da24e 100644
--- a/src/pages/hooks/useTraceResolver.ts
+++ b/src/pages/hooks/useTraceResolver.ts
@@ -5,6 +5,7 @@ import { USAGE_STATS_STALE_TIME_MS, useUsageStatsStore } from '@/stores';
 import type { AuthFileItem, Config } from '@/types';
 import type { CredentialInfo, SourceInfo } from '@/types/sourceInfo';
 import { buildSourceInfoMap, resolveSourceDisplay } from '@/utils/sourceResolver';
+import { parseTimestampMs } from '@/utils/timestamp';
 import {
   collectUsageDetailsWithEndpoint,
   normalizeAuthIndex,
@@ -183,7 +184,7 @@ export function useTraceResolver(options: UseTraceResolverOptions): UseTraceReso
     if (!logPath) return [];
 
     const logTimestampMs = traceLogLine.timestamp
-      ? Date.parse(traceLogLine.timestamp)
+      ? parseTimestampMs(traceLogLine.timestamp)
       : Number.NaN;
 
     // Step 1: filter by path match
diff --git a/src/services/api/authFiles.ts b/src/services/api/authFiles.ts
index 5cce3d0..8494188 100644
--- a/src/services/api/authFiles.ts
+++ b/src/services/api/authFiles.ts
@@ -5,6 +5,7 @@
 import { apiClient } from './client';
 import type { AuthFilesResponse } from '@/types/authFile';
 import type { OAuthModelAliasEntry } from '@/types';
+import { parseTimestampMs } from '@/utils/timestamp';
 
 type StatusError = { status?: number };
 type AuthFileStatusResponse = { status: string; disabled: boolean };
@@ -185,7 +186,7 @@ const readDateField = (entry: AuthFileEntry): number => {
       if (Number.isFinite(asNumber)) {
         return asNumber < 1e12 ? asNumber * 1000 : asNumber;
       }
-      const parsed = Date.parse(trimmed);
+      const parsed = parseTimestampMs(trimmed);
       if (!Number.isNaN(parsed)) {
         return parsed;
       }
diff --git a/src/utils/format.ts b/src/utils/format.ts
index f9eadf5..ba80460 100644
--- a/src/utils/format.ts
+++ b/src/utils/format.ts
@@ -1,3 +1,5 @@
+import { parseTimestamp } from './timestamp';
+
 /**
  * 格式化工具函数
  * 从原项目 src/utils/string.js 迁移
@@ -47,7 +49,7 @@ export function formatFileSize(bytes: number): string {
  * 格式化日期时间
  */
 export function formatDateTime(date: string | Date, locale?: string): string {
-  const d = typeof date === 'string' ? new Date(date) : date;
+  const d = typeof date === 'string' ? parseTimestamp(date) ?? new Date(date) : date;
 
   if (isNaN(d.getTime())) {
     return 'Invalid Date';
@@ -73,7 +75,7 @@ export function formatUnixTimestamp(value: unknown, locale?: string): string {
   const asNumber = typeof value === 'number' ? value : Number(value);
   const date = (() => {
     if (!Number.isFinite(asNumber) || Number.isNaN(asNumber)) {
-      return new Date(String(value));
+      return parseTimestamp(value) ?? new Date(String(value));
     }
 
     const abs = Math.abs(asNumber);
diff --git a/src/utils/timestamp.ts b/src/utils/timestamp.ts
new file mode 100644
index 0000000..19eff5a
--- /dev/null
+++ b/src/utils/timestamp.ts
@@ -0,0 +1,58 @@
+const RFC3339_HIGH_PRECISION_REGEX =
+  /^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2})(\.(\d+))?(Z|[+-]\d{2}:\d{2})?$/i;
+
+/**
+ * Some browsers mis-handle RFC3339 timestamps that include sub-millisecond
+ * precision. Normalize them to millisecond precision before parsing.
+ */
+export function normalizeTimestampForDateParse(value: string): string {
+  const trimmed = value.trim();
+  if (!trimmed) return '';
+
+  const match = trimmed.match(RFC3339_HIGH_PRECISION_REGEX);
+  if (!match) return trimmed;
+
+  const [, base, , fractionDigits = '', timezone = ''] = match;
+  if (fractionDigits.length <= 3) {
+    return trimmed;
+  }
+
+  return `${base}.${fractionDigits.slice(0, 3)}${timezone}`;
+}
+
+export function parseTimestampMs(value: unknown): number {
+  if (typeof value === 'number' && Number.isFinite(value)) {
+    return value;
+  }
+  if (typeof value !== 'string') {
+    return Number.NaN;
+  }
+
+  const trimmed = value.trim();
+  if (!trimmed) {
+    return Number.NaN;
+  }
+
+  const normalized = normalizeTimestampForDateParse(trimmed);
+  const normalizedParsed = Date.parse(normalized);
+  if (!Number.isNaN(normalizedParsed)) {
+    return normalizedParsed;
+  }
+
+  if (normalized !== trimmed) {
+    const originalParsed = Date.parse(trimmed);
+    if (!Number.isNaN(originalParsed)) {
+      return originalParsed;
+    }
+  }
+
+  return Number.NaN;
+}
+
+export function parseTimestamp(value: unknown): Date | null {
+  const timestampMs = parseTimestampMs(value);
+  if (!Number.isFinite(timestampMs)) {
+    return null;
+  }
+  return new Date(timestampMs);
+}
diff --git a/src/utils/usage.ts b/src/utils/usage.ts
index a6827b5..8d53755 100644
--- a/src/utils/usage.ts
+++ b/src/utils/usage.ts
@@ -13,6 +13,7 @@ import {
   finalizeLatencyStats,
 } from './usage/latency';
 import { maskApiKey } from './format';
+import { parseTimestampMs } from './timestamp';
 
 export type { DurationFormatOptions, LatencyStats } from './usage/latency';
 export {
@@ -195,7 +196,7 @@ export function filterUsageByTimeRange<T>(
         if (!detailRecord || typeof detailRecord.timestamp !== 'string') {
           return;
         }
-        const timestamp = Date.parse(detailRecord.timestamp);
+        const timestamp = parseTimestampMs(detailRecord.timestamp);
         if (Number.isNaN(timestamp) || timestamp < windowStart || timestamp > nowMs) {
           return;
         }
@@ -545,7 +546,7 @@ export function collectUsageDetails(usageData: unknown): UsageDetail[] {
       modelDetails.forEach((detailRaw) => {
         if (!isRecord(detailRaw) || typeof detailRaw.timestamp !== 'string') return;
         const timestamp = detailRaw.timestamp;
-        const timestampMs = Date.parse(timestamp);
+        const timestampMs = parseTimestampMs(timestamp);
         const tokensRaw = isRecord(detailRaw.tokens) ? detailRaw.tokens : {};
         const latencyMs = extractLatencyMs(detailRaw);
         details.push({
@@ -618,7 +619,7 @@ export function collectUsageDetailsWithEndpoint(usageData: unknown): UsageDetail
       modelDetails.forEach((detailRaw) => {
         if (!isRecord(detailRaw) || typeof detailRaw.timestamp !== 'string') return;
         const timestamp = detailRaw.timestamp;
-        const timestampMs = Date.parse(timestamp);
+        const timestampMs = parseTimestampMs(timestamp);
         const tokensRaw = isRecord(detailRaw.tokens) ? detailRaw.tokens : {};
         const latencyMs = extractLatencyMs(detailRaw);
         details.push({
@@ -721,7 +722,7 @@ export function calculateRecentPerMinuteRates(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp < windowStart || timestamp > now) {
       return;
     }
@@ -1131,7 +1132,7 @@ export function buildHourlySeriesByModel(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp <= 0) {
       return;
     }
@@ -1190,7 +1191,7 @@ export function buildDailySeriesByModel(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp <= 0) {
       return;
     }
@@ -1416,7 +1417,7 @@ export function calculateStatusBarData(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (
       !Number.isFinite(timestamp) ||
       timestamp <= 0 ||
@@ -1524,7 +1525,7 @@ export function calculateServiceHealthData(usageDetails: UsageDetail[]): Service
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (
       !Number.isFinite(timestamp) ||
       timestamp <= 0 ||
@@ -1734,7 +1735,7 @@ export function buildHourlyTokenBreakdown(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp <= 0) return;
     const normalized = new Date(timestamp);
     normalized.setMinutes(0, 0, 0);
@@ -1776,7 +1777,7 @@ export function buildDailyTokenBreakdown(usageData: unknown): TokenBreakdownSeri
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp <= 0) return;
     const dayLabel = formatDayLabel(new Date(timestamp));
     if (!dayLabel) return;
@@ -1853,7 +1854,7 @@ export function buildHourlyCostSeries(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp <= 0) return;
     const normalized = new Date(timestamp);
     normalized.setMinutes(0, 0, 0);
@@ -1888,7 +1889,7 @@ export function buildDailyCostSeries(
     const timestamp =
       typeof detail.__timestampMs === 'number'
         ? detail.__timestampMs
-        : Date.parse(detail.timestamp);
+        : parseTimestampMs(detail.timestamp);
     if (!Number.isFinite(timestamp) || timestamp <= 0) return;
     const dayLabel = formatDayLabel(new Date(timestamp));
     if (!dayLabel) return;