feat: expand utility widgets (#6638)

packages/widgets/src/clock/use-current-time.ts

@@ -0,0 +1,27 @@
+import { useEffect, useMemo, useRef, useState } from "react";
+import dayjs from "dayjs";
+
+export const useCurrentTime = ({ showSeconds }: { showSeconds: boolean }) => {
+  const [time, setTime] = useState<Date | null>(null);
+  const timeoutRef = useRef<ReturnType<typeof setTimeout>>(null);
+  const intervalRef = useRef<ReturnType<typeof setInterval>>(null);
+  const intervalMultiplier = useMemo(() => (showSeconds ? 1 : 60), [showSeconds]);
+
+  useEffect(() => {
+    setTime(new Date());
+    timeoutRef.current = setTimeout(
+      () => {
+        setTime(new Date());
+        intervalRef.current = setInterval(() => setTime(new Date()), intervalMultiplier * 1000);
+      },
+      intervalMultiplier * 1000 - (1000 * (showSeconds ? 0 : dayjs().second()) + dayjs().millisecond()),
+    );
+
+    return () => {
+      if (timeoutRef.current) clearTimeout(timeoutRef.current);
+      if (intervalRef.current) clearInterval(intervalRef.current);
+    };
+  }, [intervalMultiplier, showSeconds]);
+
+  return time;
+};