Timestamp Converter & Formatter

About This Online Timestamp Converter & Formatter

This advanced free online tool surpasses standard timestamp converters by offering auto-unit detection, multi-timezone views, custom formatting, batch processing, relative time calculation, and timezone-aware date parsing. Convert Unix timestamps or dates securely in your browser.

Key features include:

• Bidirectional Conversion: Timestamp to date or date to timestamp, with auto-detection for seconds, ms, us, ns.
• Multi-Timezone Support: View local date/time in selected timezones, with full, date, time, custom formats.
• Formats & Exports: ISO, RFC, Unix seconds/ms, custom (supports YYYY, MM, DD, HH, mm, ss, etc.), relative time.
• Batch Mode: Process multiple inputs at once for efficient conversions.
• Timezone-Aware Parsing: Specify input timezone for accurate date to timestamp conversion.
• Relative Time: See how long ago or in the future the timestamp is.
• Now & Clear: Quick buttons for current timestamp or resetting input.
• Theme Switching: Light/dark modes.
• Error Handling: Validates inputs, handles large/small values, invalid formats.

What is a Unix Timestamp?

A Unix timestamp (Epoch time) is the number of seconds (or finer units) since January 1, 1970, 00:00:00 UTC, excluding leap seconds. It's widely used in computing for date storage and calculations.

Programming Examples

Here are code snippets for common languages:

JavaScript (Current Timestamp in seconds): Math.floor(Date.now() / 1000) Python (Timestamp to Date): import datetime; datetime.datetime.fromtimestamp(ts) PHP (Date to Timestamp): strtotime('2025-08-10') Java (Current Milliseconds): System.currentTimeMillis()

Frequently Asked Questions (FAQ)

Is this tool free?

Yes, unlimited use.

How does timezone parsing work?

Input dates are parsed with specified timezone, adjusting for offset and DST using browser Intl API.

Does it support nanoseconds?

Yes, with auto-detection based on digit count.

What if timestamp is invalid?

Detailed errors for invalid numbers, formats, or out-of-range values.

Can I process multiple timestamps?

Yes, enable batch mode for line-separated inputs.

Is data secure?

All processing in-browser, no server uploads.