Timestamp Converter
Quickly convert Unix timestamps (in seconds or ms) to readable dates.
Timestamp Converter
Instantly transform a Unix timestamp into a human-readable date
Effortlessly convert a Unix timestamp in seconds or milliseconds into a clear, locale-aware date—ideal for debugging, analytics, or publishing data.
Seconds & Milliseconds
Auto-detect and convert a 10-digit (sec) or 13-digit (ms) Unix timestamp—no manual math needed.
One-Click “Now”
Instantly fill in the current Unix timestamp with a single click—perfect for time-sensitive tests or logs.
Readable Date Formats
Get dates in “Month Day, Year at hh:mm:ss (TZ)” style for clear human-friendly display.
Copy & Share
Quickly copy your converted date to the clipboard for logging, reporting, or pasting into docs.
FAQ
Frequently asked questions
We've compiled the most important information to help you get the most out of your Timestamp Converter, covering every aspect of timestamp conversion, formatting, validation, parsing, and integration, ensuring you effectively understand how to work with Unix timestamps, whether for debugging, analytics, logging, or data processing—can't find what you're looking for? Email [email protected].
- What types of timestamp can I convert?
- Our Timestamp Converter supports two primary Unix timestamp formats: the standard 10-digit second-based timestamp (e.g. 1627846260) and the 13-digit millisecond-based timestamp (e.g. 1627846260000). To convert a second-level timestamp, simply enter the 10-digit number with no extra characters; for millisecond-level timestamps, enter the full 13-digit number. The converter automatically detects which format you entered and applies the correct multiplier (×1000 for seconds) under the hood. Whether you’re working with legacy logs or modern APIs, this auto-detection ensures accurate, hassle-free results every time. This timestamp converter also maintains the original timestamp precision, so your timestamp values are never altered beyond the conversion process.
- Does the converter handle both seconds and milliseconds?
- Yes – the built-in logic examines the numeric value you input and determines whether it represents a timestamp in seconds or milliseconds. If it’s less than 1e12, the tool assumes a second-based timestamp and multiplies by 1000 to convert to milliseconds. Otherwise, it treats the input as already in milliseconds. This intelligent check means you can paste in either a 10-digit (sec) or a 13-digit (ms) Unix timestamp and receive an instant, correctly formatted date string without any manual toggles or options. You can use this timestamp converter for any timestamp conversion task.
- How accurate is the conversion relative to my local timezone?
- The converter leverages your browser’s built-in Internationalization API (Intl.DateTimeFormat), which uses the system’s locale and timezone settings. It formats dates with millisecond precision and explicitly includes the “shortOffset” label (e.g., GMT+2). Because it runs entirely client-side, you get an accurate, fully localized timestamp string that matches your regional preferences—no server-roundtrips or manual timezone selectors required. This timestamp output always reflects the correct local time.
- How do I use the “Now” button?
- Click the “Now” button to instantly fill the input field with the current Unix timestamp in milliseconds (Date.now()). Then click “Convert” or press Enter to see today’s exact date and time formatted for your locale. This feature is especially useful for real-time debugging, performance measurements, or any scenario where you need a quick snapshot of the current moment. Use the timestamp tool whenever you need the current timestamp quickly.
- What happens if I enter an invalid or out-of-range timestamp?
- If the input is empty, contains non-numeric characters, or falls outside a reasonable Unix timestamp range (negative values or extremely large numbers beyond real-world dates), the converter displays a clear, inline error message explaining the issue. Examples include “Please enter a timestamp.” for empty input, “Invalid format. Please enter numeric digits only.” for any non-digits, and “Timestamp is too large. Please check your input.” if it exceeds practical limits. This real-time validation prevents confusing or nonsensical timestamp output and ensures consistent timestamp handling.