Timestamp Converter
Live Clock
Current Unix timestamp updates every second.
Multiple Formats
Local time, UTC, ISO 8601, relative.
Bidirectional
Timestamp to date and date to timestamp.
Client-side
All processing in your browser. No data uploaded.
About Timestamp Converter
A Unix timestamp (also called Epoch time) is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC. It is the standard time representation used by operating systems, databases, and web APIs because it is timezone-agnostic, always increasing, and trivial to compare or subtract. This converter makes it easy to translate between raw Unix timestamps and human-readable dates in both directions. You can paste a Unix timestamp (seconds or milliseconds are both accepted) to instantly see the equivalent local time, UTC, ISO 8601, and a relative description such as "3 days ago". Conversely, you can type a natural date string to get its Unix equivalent in seconds and milliseconds. A live clock shows the current Unix timestamp updating every second, which you can click to load into the converter. All processing runs entirely in your browser — no network requests are made — so the tool works offline and is completely private.
How to Use Timestamp Converter
- Observe the live counter at the top to see the current Unix timestamp updating in real time.
- To convert a timestamp to a date: paste or type a Unix timestamp (seconds or milliseconds) into the "Timestamp to Date" field.
- The tool will instantly display the equivalent Local Time, UTC, ISO 8601 string, and relative time.
- To convert a date to a timestamp: type a date string such as "2025-06-15 09:00:00" into the "Date to Timestamp" field.
- The tool shows the Unix value in both seconds and milliseconds, plus ISO 8601 and relative formats.
- Click any Copy button to copy a specific value to your clipboard.
Frequently Asked Questions
What is the Unix epoch?
The Unix epoch is the point in time from which Unix timestamps are measured: January 1, 1970, 00:00:00 UTC. A timestamp of 0 represents that exact moment; positive values represent time after it.
Does this tool accept millisecond timestamps?
Yes. The tool automatically detects whether your input is in seconds or milliseconds. Values larger than 10¹² are treated as milliseconds; smaller values are treated as seconds.
What date formats can I type into the Date to Timestamp field?
The field accepts any string that JavaScript's Date constructor can parse, including ISO 8601 (2025-06-15T09:00:00), common formats like "June 15 2025", and locale-specific strings.
Why does the relative time say "a few seconds ago" for now?
The tool computes relative time from the current moment. A timestamp within 60 seconds of now is displayed as "a few seconds ago" or "in a few seconds" for future timestamps.
Is there a 2038 problem with this tool?
No. This tool uses JavaScript's 64-bit floating-point numbers and BigInt where needed, so it handles timestamps far beyond the 32-bit signed integer limit of January 19, 2038.
Unix Timestamp Converter: Epoch Time to Human Readable Date & Local Timezones
Instant bidirectional Unix timestamp conversion with automatic second and millisecond detection
The Challenge & The Solution
Raw integer epoch timestamps (e.g. 1718000000) are impossible to parse visually and often cause unit confusion between 10-digit seconds and 13-digit milliseconds.
Metoolzy Timestamp Converter delivers instant, bidirectional translation between Unix timestamps and human-readable dates across local timezones and UTC.
Key Features of Timestamp Converter
- Auto-Detection: Intelligently identifies 10-digit (seconds) and 13-digit (milliseconds) epoch values.
- Bidirectional Conversion: Convert timestamps to dates or pick a calendar date to generate timestamp integers.
- Multi-Format Display: Output ISO 8601, RFC 2822, UTC, and local formatted date strings.
- Live Epoch Ticker: Real-time counter displaying the current Unix second.
Step-by-Step Guide
- Paste your timestamp integer or pick a date.
- Inspect the instant conversion across timezones.
- Copy the desired format with one click.
Feature Comparison
| Unit | Digits | Example | Common Environments |
|---|---|---|---|
| Seconds | 10 digits | 1718000000 |
Linux, PHP, Python, PostgreSQL, MySQL |
| Milliseconds | 13 digits | 1718000000000 |
JavaScript Date.now(), Java, MongoDB |
Practical Real-World Use Cases
- Debugging backend API logs and authentication expiry headers
- Converting database audit timestamps for reporting
- Troubleshooting cron schedules and scheduled event logs
Frequently Asked Questions (FAQ)
What is the Unix Epoch?
The Unix Epoch is 00:00:00 UTC on January 1, 1970—the reference point from which Unix timestamps count elapsed seconds.