Timestamp / Epoch Converter

Enter a Unix epoch in seconds or milliseconds, an ISO 8601 string, or a human-readable date and this timestamp converter shows all representations at once: epoch in seconds, epoch in milliseconds, ISO 8601, UTC, your local timezone, and a relative “3 hours ago” label. Copy any format in one click.

A live ticker at the top shows the current Unix epoch, updating every second, so you always have a reference point. The converter auto-detects whether your input is seconds or milliseconds (values above 9 999 999 999 are treated as ms). Invalid input shows a clear error instead of a wrong date. Everything runs in your browser, offline-capable after the first load.