Time Formats Converter

Convert timestamps and date/time strings between common machine and human-readable formats.

How to Use

  1. Pick the input type that matches your value.
  2. Enter a timestamp or date/time string.
  3. Choose UTC or local output mode if needed.
  4. Review the converted results and copy what you need.
Format Preview
Live normalized output across common date and time standards.
Input Type
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Timezone
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Validity
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Epoch
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Status: Waiting for input
ISO 8601
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UTC
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Local
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RFC 2822
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12-Hour
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24-Hour
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Inputs & Settings
Enter one value and convert it into multiple output formats.
Auto detect works for most common timestamp and date strings.
Choose how the preview and results should be displayed.
Paste a timestamp or type a date/time string. No uploads required.
Show Details
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Parsing notes explain how the input was interpreted before conversion.

Supported Time Formats

Quick answer: This tool converts one valid time input into several machine-friendly and human-friendly output formats.

Use it for APIs, logs, databases, debugging, scheduling, and date normalization.

  • UNIX Timestamp: Seconds or milliseconds since January 1, 1970 UTC
  • ISO 8601: Structured standard date/time format used in APIs and databases
  • UTC String: Universal Coordinated Time display
  • Local Date/Time: Browser-local formatted date and time
  • RFC 2822: Common email and header date format
  • 12-Hour / 24-Hour: Human-readable clock display formats
Output formatting is generated in the browser for speed and privacy.

FAQ

What is the difference between UNIX seconds and milliseconds?

UNIX seconds use 10-digit style values in many systems, while milliseconds are typically 13 digits and provide finer precision.

What is ISO 8601?

ISO 8601 is a standard date/time format such as 2026-03-10T14:30:00Z that is widely used in APIs, logging, and structured data.

Why do UTC and local time look different?

UTC is timezone-neutral. Local time applies your browser or device timezone offset, which can shift the displayed hour and date.

Can this tool detect the input automatically?

Yes. Auto Detect is designed to recognize common timestamps and formatted date strings, though manual selection is available when you want exact control.

Tool Info

Last updated:

Updates may include improved parsing, more output formats, and better edge-case handling.