feat(ui): show server and browser date/time in toolbar

Co-authored-by: Cursor <cursoragent@cursor.com>

public/app.js

@@ -6,6 +6,8 @@ const loginError = document.querySelector("#login-error");
 
 const logoutBtn = document.querySelector("#logout");
 const refreshBtn = document.querySelector("#refresh");
+const clockServerEl = document.querySelector("#clock-server");
+const clockLocalEl = document.querySelector("#clock-local");
 const rowsEl = document.querySelector("#rows");
 const statusEl = document.querySelector("#status");
 const peerCountEl = document.querySelector("#peer-count");
@@ -129,6 +131,7 @@ dtOk.addEventListener("click", async () => {
 });
 
 function showLogin() {
+  stopClocks();
   loginGate.classList.remove("hidden");
   loginGate.setAttribute("aria-hidden", "false");
   appRoot.classList.add("hidden");
@@ -138,6 +141,7 @@ function showApp() {
   loginGate.classList.add("hidden");
   loginGate.setAttribute("aria-hidden", "true");
   appRoot.classList.remove("hidden");
+  startClocks();
 }
 
 function setStatus(text, isErr) {
@@ -212,6 +216,60 @@ refreshBtn.addEventListener("click", () => {
   loadClients();
 });
 
+const clockFmt = new Intl.DateTimeFormat("ru-RU", {
+  dateStyle: "medium",
+  timeStyle: "medium",
+});
+
+/** @type {ReturnType<typeof setInterval> | null} */
+let clockTickId = null;
+/** @type {ReturnType<typeof setInterval> | null} */
+let clockServerPollId = null;
+
+async function refreshServerClock() {
+  try {
+    const t = await api("/api/server-time");
+    const iso = typeof t.iso === "string" ? t.iso : "";
+    clockServerEl.dateTime = iso;
+    const tz = typeof t.timeZone === "string" ? t.timeZone : "";
+    const formatted = typeof t.formatted === "string" ? t.formatted : "";
+    clockServerEl.textContent =
+      formatted.trim() ? `${formatted}${tz ? ` · ${tz}` : ""}` : "—";
+  } catch {
+    clockServerEl.dateTime = "";
+    clockServerEl.textContent = "—";
+  }
+}
+
+function tickLocalClock() {
+  const n = new Date();
+  clockLocalEl.dateTime = n.toISOString();
+  clockLocalEl.textContent = clockFmt.format(n);
+}
+
+function stopClocks() {
+  if (clockTickId !== null) {
+    clearInterval(clockTickId);
+    clockTickId = null;
+  }
+  if (clockServerPollId !== null) {
+    clearInterval(clockServerPollId);
+    clockServerPollId = null;
+  }
+  clockServerEl.dateTime = "";
+  clockLocalEl.dateTime = "";
+  clockServerEl.textContent = "—";
+  clockLocalEl.textContent = "—";
+}
+
+function startClocks() {
+  stopClocks();
+  tickLocalClock();
+  void refreshServerClock();
+  clockTickId = setInterval(tickLocalClock, 1000);
+  clockServerPollId = setInterval(() => void refreshServerClock(), 30_000);
+}
+
 const dtRu = new Intl.DateTimeFormat("ru-RU", {
   dateStyle: "short",
   timeStyle: "short",
@@ -374,6 +432,7 @@ async function loadClients() {
     wgShowEl.textContent = data.wgShow || "";
     renderRows(data.clients);
     setStatus("", false);
+    void refreshServerClock();
   } catch (e) {
     const msg = String(e.message || e);
     if (msg.includes("Unauthorized")) {

public/index.html

@@ -53,6 +53,16 @@
 
     <section class="toolbar">
       <div class="pill"><span class="dot ok"></span><span id="proto-label">Протокол: AmneziaWG</span></div>
+      <div class="clock-strip" role="status" aria-live="polite">
+        <div class="clock-row">
+          <span class="muted clock-kind">Сервер</span>
+          <time id="clock-server" class="clock-time">—</time>
+        </div>
+        <div class="clock-row">
+          <span class="muted clock-kind">Браузер</span>
+          <time id="clock-local" class="clock-time">—</time>
+        </div>
+      </div>
       <button type="button" id="refresh" class="btn primary">Обновить</button>
     </section>
 

public/styles.css

@@ -205,6 +205,35 @@ h1 {
   flex-wrap: wrap;
 }
 
+.clock-strip {
+  display: flex;
+  flex-direction: column;
+  gap: 0.2rem;
+  padding: 0.45rem 0.75rem;
+  border-radius: 12px;
+  border: 1px solid var(--line);
+  background: rgba(255, 255, 255, 0.03);
+  font-size: 0.82rem;
+  line-height: 1.35;
+}
+
+.clock-row {
+  display: flex;
+  align-items: baseline;
+  gap: 0.5rem;
+  flex-wrap: wrap;
+}
+
+.clock-kind {
+  flex: 0 0 4.25rem;
+}
+
+.clock-time {
+  font-family: "JetBrains Mono", ui-monospace, monospace;
+  font-size: 0.84rem;
+  color: var(--text);
+}
+
 .pill {
   display: inline-flex;
   align-items: center;

server.js

@@ -344,6 +344,24 @@ app.get("/api/session", (req, res) => {
   res.json({ ok: true });
 });
 
+app.get("/api/server-time", requireAuth, (_req, res) => {
+  const now = new Date();
+  let timeZone = "UTC";
+  try {
+    timeZone = Intl.DateTimeFormat().resolvedOptions().timeZone || timeZone;
+  } catch {
+    /* ignore */
+  }
+  res.json({
+    iso: now.toISOString(),
+    formatted: now.toLocaleString("ru-RU", {
+      dateStyle: "medium",
+      timeStyle: "medium",
+    }),
+    timeZone,
+  });
+});
+
 app.post("/api/login", (req, res) => {
   const pw = req.body?.password;
   if (typeof pw !== "string" || !pw) {