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Timestamp Converter

Convert between Unix timestamps and human-readable dates with timezone support. The best timestamp conversion tool for developers.

Timestamp Converter translates between Unix epochs and human‑readable dates with timezone awareness. It’s built for debugging logs, aligning ETL windows, and validating API payloads.

Key features

  • Unix timestamp to date conversion
  • Date to Unix timestamp conversion
  • Current timestamp display with auto-update
  • Basic timezone support (UTC, Local, common zones)
  • ISO 8601 format support
  • Millisecond precision handling
  • Copy results to clipboard
  • Input validation and error handling

How it works

Bidirectional parsing updates both fields live, with precise control over seconds/milliseconds. Premium adds batch conversion, custom format patterns, and multi‑timezone comparison with DST handling.

Step-by-step usage

  1. Paste a Unix timestamp or date string.
  2. Choose a timezone and review ISO/local outputs.
  3. (Premium) Convert batches from text/CSV and export results.

Examples

Epoch to ISO

1734048000 → 2024-12-13T00:00:00.000Z

ISO to epoch (seconds)

2025-01-01T00:00:00Z → 1735689600

(Premium) Batch convert

Paste a column of epochs, convert to local time, and export results as CSV.

Security & privacy

Where applicable, processing runs locally in your browser. Inputs are not logged or sent to external services. Premium features inside the app use Supabase Auth to protect access. For sensitive work, prefer local files and avoid sharing secrets. Outputs include copy and download actions to minimize manual transcription errors.

Accessibility

The tool supports keyboard navigation and screen readers with ARIA labels and descriptive messages. Focus order is logical, and error messages use human‑readable language. These docs maintain proper heading hierarchy and color contrast, and the app version includes skip links and live regions where appropriate.

Limitations & disclaimers

Some advanced capabilities are available only in the DevToolsHub app with a premium plan. The static documentation does not execute code or store inputs. Where behaviors differ across runtimes (browsers, servers, language engines), treat outputs as representative and verify against your production stack when correctness is critical.

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Resources & references

Open this tool in DevToolsHub