UTL
UTL.toolsThe Digital Toolbox
Updated: August 2026 • Verified v1.2

Unix Timestamp Batch Converter & Date Matrix

Developer ToolsHigh Usage

Local Browser Execution: Your input is processed locally in your browser and is not sent to UTL servers.
Batch Date Parsing: Timestamp_ms = Epoch_s * 1000 ➔ Date(Timestamp_ms).toISOString()
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Understanding Your Results

Converts multi-line timestamp lists into structured rows showing Epoch seconds, Epoch milliseconds, UTC ISO 8601 dates, and local formatted times.

Practical Guidance & Next Steps

Supports 10-digit seconds (e.g. 1772496000), 13-digit milliseconds, and ISO date strings.

What is this?

A developer productivity utility that converts batches of Unix timestamps into structured dates simultaneously.

How does it work?

1. Paste a list of timestamps (seconds, ms, or ISO strings) into the input box. 2. View the synchronized conversion matrix instantly. 3. Export as CSV or copy all dates in 1 click.

Why use it?

Saves hours when debugging database queries, server logs, and API payloads.

Technical Scope & Calculation Limitations

Processes lists client-side up to several thousand lines instantaneously in memory.

Frequently Asked Questions

Yes. The batch converter automatically distinguishes between 10-digit seconds and 13-digit milliseconds.
Windows Desktop & Widget Options

Want this capability on your Windows desktop?

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Desktop App
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