From a82b520952f01b2cbbb7becd5181f0c8cf440d4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B0=D0=BD=D0=B4=D1=80=20?=
 =?UTF-8?q?=D0=97=D0=B8=D0=BC=D0=B8=D0=BD?= <zimin.an@nstart.space>
Date: Sat, 20 Jun 2026 21:37:05 +0000
Subject: [PATCH] =?UTF-8?q?fix(ui):=20DatePicker=20off-by-one=20=D0=B2=20T?=
 =?UTF-8?q?Z=20!=3D=20UTC?=
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---
 ordinis-admin-ui/src/ui/components/date-picker.tsx | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/ordinis-admin-ui/src/ui/components/date-picker.tsx b/ordinis-admin-ui/src/ui/components/date-picker.tsx
index 7a7e37e..d009ed1 100644
--- a/ordinis-admin-ui/src/ui/components/date-picker.tsx
+++ b/ordinis-admin-ui/src/ui/components/date-picker.tsx
@@ -1,6 +1,7 @@
 import * as React from 'react'
 import { Input } from './input'
 import { FieldLabel, FieldHint, FieldError } from './field'
+import { formatIsoDate, parseFormDate } from '@/lib/dates'
 import { cn } from '@/lib/utils'
 
 /**
@@ -32,10 +33,13 @@ export type DatePickerProps = {
   inputClassName?: string
 }
 
+// Local-TZ форматирование. toISOString().slice(0,10) на Date в TZ != UTC
+// даёт day-shift (например, 21.06 MSK → "2026-06-20"), что выглядит как
+// «picker показывает на день меньше».
 const toIso = (v: Date | string | null | undefined): string => {
   if (!v) return ''
   if (typeof v === 'string') return v.slice(0, 10)
-  if (v instanceof Date && !isNaN(v.getTime())) return v.toISOString().slice(0, 10)
+  if (v instanceof Date && !isNaN(v.getTime())) return formatIsoDate(v)
   return ''
 }
 
@@ -64,8 +68,7 @@ export function DatePicker({
       onChange?.(null)
       return
     }
-    const d = new Date(raw + 'T00:00:00')
-    onChange?.(isNaN(d.getTime()) ? null : d)
+    onChange?.(parseFormDate(raw))
   }
 
   return (