frontend/src/components/sidebar/BulkTakenAtEditor.tsx

@@ -64,7 +64,11 @@ export function BulkTakenAtEditor({
 
   const handleApplyUniform = () => {
     if (!uniformDraft) return
-    const parsed = new Date(uniformDraft)
+    // uniformDraft is "YYYY-MM-DD" from a date input; anchor to local
+    // midnight so the stored ISO matches the day the user picked when
+    // viewed in their own timezone.
+    const [year, month, day] = uniformDraft.split('-').map(Number)
+    const parsed = new Date(year, month - 1, day)
     if (Number.isNaN(parsed.getTime())) return
     onApplyUniform(parsed.toISOString())
   }
@@ -74,7 +78,7 @@ export function BulkTakenAtEditor({
       {/* Apply-one row */}
       <div className="flex items-center gap-1.5">
         <Input
-          type="datetime-local"
+          type="date"
           value={uniformDraft}
           onChange={(e) => setUniformDraft(e.target.value)}
           disabled={disabled}

frontend/src/components/sidebar/PhotoInfoPanel.tsx

@@ -39,7 +39,7 @@ import {
   COLOR_LABEL_OPTIONS,
   type ColorLabel,
 } from '../../constants/colorLabels'
-import { toDatetimeLocalValue } from '../../lib/guessDateFromPath'
+import { toDateInputValue } from '../../lib/guessDateFromPath'
 import { TagsEditor } from './TagsEditor'
 import { TakenAtEditor } from './TakenAtEditor'
 
@@ -311,7 +311,7 @@ export function PhotoInfoPanel({ photoId, darkTheme = false }: PhotoInfoPanelPro
     setFilenameDraft(photo?.filename ?? '')
     setNotesDraft(photo?.user_notes ?? '')
     setTakenAtDraft(
-      photo?.taken_at ? toDatetimeLocalValue(new Date(photo.taken_at)) : ''
+      photo?.taken_at ? toDateInputValue(new Date(photo.taken_at)) : ''
     )
   }, [
     photo?.id,
@@ -353,26 +353,32 @@ export function PhotoInfoPanel({ photoId, darkTheme = false }: PhotoInfoPanelPro
     updateMutation.mutate({ user_notes: next || null })
   }
 
-  /** Commit a datetime-local draft back to the server. The backend also
+  /** Commit a date-only draft back to the server. The backend also
    *  rewrites EXIF on disk, so a failure here rolls the draft back to the
    *  server value — we never want the UI to silently disagree with the
    *  file. An empty string is a no-op because the input's `required` is
-   *  off and we don't yet have a "clear date" affordance. */
+   *  off and we don't yet have a "clear date" affordance.
+   *
+   *  Comparison is YYYY-MM-DD vs YYYY-MM-DD (not full ISO) so a blur with
+   *  no edits doesn't clobber the stored time-of-day with a new local
+   *  midnight. */
   const commitTakenAt = (rawValue?: string) => {
     const source = rawValue ?? takenAtDraft
     if (!source) return
-    const parsed = new Date(source)
-    if (Number.isNaN(parsed.getTime())) {
+    const [y, m, d] = source.split('-').map((n) => Number(n))
+    if (!Number.isInteger(y) || !Number.isInteger(m) || !Number.isInteger(d)) {
       toast.error('Invalid date', 'Could not parse the value')
       setTakenAtDraft(
-        photo?.taken_at ? toDatetimeLocalValue(new Date(photo.taken_at)) : ''
+        photo?.taken_at ? toDateInputValue(new Date(photo.taken_at)) : ''
       )
       return
     }
+    const current = photo?.taken_at
+      ? toDateInputValue(new Date(photo.taken_at))
+      : ''
+    if (current === source) return
+    const parsed = new Date(y, m - 1, d)
     const iso = parsed.toISOString()
-    if (photo?.taken_at && new Date(photo.taken_at).toISOString() === iso) {
-      return
-    }
     updateMutation.mutate(
       { taken_at: iso },
       {
@@ -383,7 +389,7 @@ export function PhotoInfoPanel({ photoId, darkTheme = false }: PhotoInfoPanelPro
           )
           setTakenAtDraft(
             photo?.taken_at
-              ? toDatetimeLocalValue(new Date(photo.taken_at))
+              ? toDateInputValue(new Date(photo.taken_at))
               : ''
           )
         },
@@ -455,22 +461,6 @@ export function PhotoInfoPanel({ photoId, darkTheme = false }: PhotoInfoPanelPro
               }
             />
           </div>
-          {/* Filepath: full-width mono so it wraps cleanly instead of
-           *  stretching the two-column grid. */}
-          <div className="text-xs">
-            <span className="text-text-muted">Path</span>
-            <p
-              className="mt-0.5 break-all font-mono text-[11px] text-text"
-              title={photo.filepath}
-            >
-              {photo.filepath
-                ? photo.filepath.replace(
-                    /^\/?nextcloud-users\/[^/]+\/files\//,
-                    '…/',
-                  )
-                : '—'}
-            </p>
-          </div>
           {hasGps && (
             <a
               href={`https://www.openstreetmap.org/?mlat=${photo.latitude}&mlon=${photo.longitude}#map=15/${photo.latitude}/${photo.longitude}`}
@@ -513,6 +503,21 @@ export function PhotoInfoPanel({ photoId, darkTheme = false }: PhotoInfoPanelPro
               />
             </div>
 
+            <div className="text-xs">
+              <span className="text-text-muted">Path</span>
+              <p
+                className="mt-0.5 break-all font-mono text-[11px] text-text"
+                title={photo.filepath}
+              >
+                {photo.filepath
+                  ? photo.filepath.replace(
+                      /^\/?nextcloud-users\/[^/]+\/files\//,
+                      '…/',
+                    )
+                  : '—'}
+              </p>
+            </div>
+
             <TakenAtEditor
               photo={photo}
               draft={takenAtDraft}

frontend/src/components/sidebar/TakenAtEditor.tsx

@@ -3,7 +3,7 @@ import { format } from 'date-fns'
 import { cn } from '@/lib/utils'
 import {
   guessDateFromPath,
-  toDatetimeLocalValue,
+  toDateInputValue,
 } from '../../lib/guessDateFromPath'
 import type { PhotoDetails } from './PhotoInfoPanel'
 
@@ -78,7 +78,7 @@ export function TakenAtEditor({
       <label className="mb-1 block text-text-muted">Date Taken</label>
       <div className="flex items-center gap-1.5">
         <input
-          type="datetime-local"
+          type="date"
           value={draft}
           onChange={(e) => onDraftChange(e.target.value)}
           onBlur={() => onCommit()}
@@ -88,7 +88,7 @@ export function TakenAtEditor({
             } else if (e.key === 'Escape') {
               onDraftChange(
                 photo.taken_at
-                  ? toDatetimeLocalValue(new Date(photo.taken_at))
+                  ? toDateInputValue(new Date(photo.taken_at))
                   : ''
               )
               e.currentTarget.blur()
@@ -108,7 +108,7 @@ export function TakenAtEditor({
       {showSuggestion && guess && (
         <button
           onClick={() => {
-            const next = toDatetimeLocalValue(guess.date)
+            const next = toDateInputValue(guess.date)
             onDraftChange(next)
             onCommit(next)
           }}

frontend/src/lib/guessDateFromPath.ts

@@ -269,11 +269,9 @@ export function guessDateFromPath(filepath: string): DateGuess | null {
   return bestFolder
 }
 
-/** Format a Date as the `value` of an `<input type="datetime-local">`. */
-export function toDatetimeLocalValue(d: Date): string {
+/** Format a Date as the `value` of an `<input type="date">` — local-time
+ *  YYYY-MM-DD (ISO 8601 date). */
+export function toDateInputValue(d: Date): string {
   const pad = (n: number) => String(n).padStart(2, '0')
-  return (
-    `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}` +
-    `T${pad(d.getHours())}:${pad(d.getMinutes())}`
-  )
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`
 }