Local Clock

1"use client"
2 
3import * as React from "react"
4 
5import { cn } from "@/lib/utils"
6 
7/** Defaults — edit timezone props after install. */
8const CONTENT = {
9  timezone: "America/New_York",
10  timezoneLabel: "ET",
11}
12 
13export function LocalClock({
14  timezone = CONTENT.timezone,
15  timezoneLabel = CONTENT.timezoneLabel,
16  className,
17}: {
18  timezone?: string
19  timezoneLabel?: string
20  className?: string
21} = {}) {
22  const [now, setNow] = React.useState<Date | null>(null)
23 
24  React.useEffect(() => {
25    const tick = () => setNow(new Date())
26    tick()
27    const timer = window.setInterval(tick, 30_000)
28    return () => window.clearInterval(timer)
29  }, [])
30 
31  const time = now
32    ? new Intl.DateTimeFormat("en-US", {
33        timeZone: timezone,
34        hour: "numeric",
35        minute: "2-digit",
36        hour12: true,
37      }).format(now)
38    : "—:—"
39 
40  return (
41    <span
42      className={cn(
43        "inline-flex items-center gap-1 font-mono text-[11.5px] text-muted-foreground tabular-nums",
44        className
45      )}
46      aria-label={`Local time in ${timezoneLabel}: ${time}`}
47      title={`${timezoneLabel} · ${timezone}`}
48    >
49      <span className="text-foreground">{time}</span>
50      <span className="text-muted-foreground/70">{timezoneLabel}</span>
51    </span>
52  )
53}