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Change header timer to UTC clock #11

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Change header timer to UTC clock #11

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13 changes: 8 additions & 5 deletions src/components/Header.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -22,16 +22,19 @@ function formatUptime(seconds: number): string {
return parts.join(' ');
}

function formatUTCTime(date: Date): string {
return date.toISOString().slice(11, 19) + ' UTC';
}

export function Header({ hostname, platform, arch, uptime, loadAvg, processCount }: HeaderProps) {
const [sessionStartTime] = useState(() => Date.now());
const [elapsedSeconds, setElapsedSeconds] = useState(0);
const [utcTime, setUtcTime] = useState(() => formatUTCTime(new Date()));

useEffect(() => {
const interval = setInterval(() => {
setElapsedSeconds(Math.floor((Date.now() - sessionStartTime) / 1000));
setUtcTime(formatUTCTime(new Date()));
}, 1000);
return () => clearInterval(interval);
}, [sessionStartTime]);
}, []);

return (
<div className="header">
Expand All @@ -50,7 +53,7 @@ export function Header({ hostname, platform, arch, uptime, loadAvg, processCount
Uptime: <span className="value">{formatUptime(uptime)}</span>
</span>
<span className="session-timer">
Session: <span className="value">{formatUptime(elapsedSeconds)}</span>
Time: <span className="value">{utcTime}</span>
</span>
</div>
<div className="header-right">
Expand Down