fix: show snapshot time in browser time zone (#101)

src/pages/account-events/ui/AccountEventsPage/AccountEventsPage.filters.test.tsx

@@ -72,6 +72,9 @@ function renderEvents(accountId: string, searches: string[]) {
 }
 
 describe("Upcoming event date filters", () => {
+	afterEach(() => {
+		vi.useRealTimers();
+	});
 	beforeEach(() => {
 		// Pin "today": the test picks today + 10 days, which must be inside the visible calendar grid.
 		// Real dates can push it beyond the grid (e.g. 2026-10-23 -> 2 November).
@@ -235,6 +238,10 @@ describe("Upcoming event date filters", () => {
 	it.each(["account-1", "all"])(
 		"applies dates only on submit, restores URL dates, and resets from empty results for %s",
 		async (accountId) => {
+			// Pin "today" mid-month so "today + 10 days" stays in the calendar's
+			// visible month regardless of the real date.
+			vi.useFakeTimers({ toFake: ["Date"] });
+			vi.setSystemTime(new Date("2026-10-15T12:00:00+03:00"));
 			const [defaultFrom, defaultTo] = defaultPeriod();
 			const searches: string[] = [];
 			server.use(

src/pages/stock/ui/StockPage/StockPage.test.tsx

@@ -413,7 +413,9 @@ describe("stock page", () => {
 		expect(await screen.findByText("Продажа")).toBeVisible();
 		expect(screen.getByText("2 шт.")).toBeVisible();
 		expect(screen.getByText("Цена: 100 ₽")).toBeVisible();
-		expect(screen.getByText(/02.01.2022, 10:00 UTC/)).toBeVisible();
+		const snapshotTime = new Intl.DateTimeFormat("ru-RU", { dateStyle: "short", timeStyle: "short" });
+		const operationTime = snapshotTime.format(new Date("2022-01-02T10:00:00Z"));
+		expect(screen.getByText(operationTime, { exact: false })).toBeVisible();
 		expect(
 			requests.some(
 				url =>

src/pages/stocks/ui/StocksPage/StocksPage.test.tsx

@@ -93,7 +93,9 @@ describe("stock search", () => {
 		expect(
 			await screen.findByRole("link", { name: /Сбербанк/ }),
 		).toHaveAttribute("href", "/stocks/e6123145-9665-43e0-8413-cd61b8aa9b13");
-		expect(screen.getByText("Список получен 10.10.2026, 10:00")).toBeVisible();
+		const snapshotTime = new Intl.DateTimeFormat("ru-RU", { dateStyle: "short", timeStyle: "short" });
+		const fetchedAt = snapshotTime.format(new Date("2026-10-10T10:00:00Z"));
+		expect(screen.getByText(`Список получен ${fetchedAt}`)).toBeVisible();
 		expect(screen.getByText("Лот: 10 шт.")).toBeVisible();
 		expect(screen.getByText("ISIN: RU0009029540")).toBeVisible();
 		expect(screen.getAllByText("Мосбиржа")[0]).toBeVisible();

src/shared/i18n/locales/ru.ts

@@ -420,7 +420,7 @@ const ru = {
 			next: "Далее",
 			noInstrument: "Без инструмента",
 			noMoney: "Без движения денег",
-			occurredAt: "{{date}} UTC",
+			occurredAt: "{{date}}",
 			open: "Открыть журнал",
 			operationType: {
 				buy: "Покупка",
@@ -632,7 +632,7 @@ const ru = {
 			position: "Моя позиция",
 			previous: "Назад",
 			price: "Цена",
-			priceAt: "Цена на {{date}} UTC",
+			priceAt: "Цена на {{date}}",
 			priceTable: "Цены в таблице",
 			priceTableHint: "Дневные закрытия · записей: {{count}} · сначала новые",
 			priceUnavailable: "Цена недоступна",
@@ -721,7 +721,7 @@ const ru = {
 				SHARE_TYPE_GDR: "Депозитарная расписка",
 				SHARE_TYPE_PREFERRED: "Привилегированная акция",
 			},
-			snapshotAt: "Позиция на {{date}} UTC",
+			snapshotAt: "Позиция на {{date}}",
 			trading: {
 				SECURITY_TRADING_STATUS_BREAK_IN_TRADING: "Перерыв в торгах",
 				SECURITY_TRADING_STATUS_CLOSING_AUCTION: "Аукцион закрытия",

src/shared/lib/display.test.ts

@@ -12,9 +12,16 @@ describe("shared display helpers", () => {
 		expect(formatDate("2027-09-10")).toBe("10.09.2027");
 		expect(formatDate("2024-02-29")).toBe("29.02.2024");
 		expect(formatDate("2027-09-10T00:30:00+03:00")).toBe("09.09.2027");
-		expect(formatSnapshotTime("2027-09-10T00:30:00+03:00")).toBe(
-			"09.09.2027, 21:30",
-		);
+	});
+	it("formats snapshot time in the browser time zone", () => {
+		const instant = "2027-09-10T00:30:00+03:00";
+
+		const expected = new Intl.DateTimeFormat("ru-RU", {
+			dateStyle: "short",
+			timeStyle: "short",
+		}).format(new Date(instant));
+
+		expect(formatSnapshotTime(instant)).toBe(expected);
 	});
 	it("formats decimal strings without financial arithmetic", () => {
 		expect(formatMoney({ currency: "RUB", value: "-1234567.89" })).toBe(

src/shared/lib/display.ts

@@ -61,10 +61,10 @@ function formatMoney(
 	return `${formatDecimal(decimal)} ${currency}`;
 }
 
+// Без timeZone Intl берёт часовой пояс браузера пользователя.
 const snapshotFormatter = new Intl.DateTimeFormat("ru-RU", {
 	dateStyle: "short",
 	timeStyle: "short",
-	timeZone: "UTC",
 });
 
 function formatSnapshotTime(value: string): string {