ShadowReference
ShadowReference
Date & Time

Date & Time Converter

Free online tool · runs in your browser

Convert dates across common formats.

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Quick tutorial

  1. 1Enter a date/time string.
  2. 2Click Convert to see all formats.

Free online date & time converter

Convert a date/time string into ISO 8601, UTC, local time, and Unix seconds/milliseconds in one view. ISO 8601 input is the most reliable across browsers. Use this when an API uses UTC, your logs use local time, and you need both plus epoch. Parsing of ambiguous locales can vary by browser.

How to use Date & Time Converter

  1. Enter a date/time string.
  2. Click Convert to see all formats.

Limitations

  • Ambiguous local strings may parse differently across browsers.

Example

Input

2024-06-15T14:30:00Z

Output

Local: ...
UTC: ...
Unix (s): ...

FAQ

Frequently Asked Questions

What date format should I paste?

ISO 8601 (2024-06-15T14:30:00Z) is the most consistent. Natural language dates may parse differently by locale.

Does this change timezones on a server?

No. It uses your browser’s timezone for local formatting. Nothing is sent to a server.

What format should I use?

ISO 8601 is the most reliable input format.

Is Date & Time Converter free to use?

Yes. Date & Time Converter on ShadowReference is free, with no account, no watermarks, and no server-side processing.

Does this tool send my data to a server?

No. All processing happens locally in your browser. Your input never leaves your device.

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