Date Formatter
Format dates in ISO 8601, RFC 2822, Unix timestamp, and custom formats. Live preview with multiple format outputs. Free online tool.
Why Use a Date Formatter?
Dates come in many formats depending on the context — ISO 8601 for APIs, RFC 2822 for email headers, Unix timestamps for databases, and various locale-specific formats for display. Our date formatter lets you input a date once and see it in all common formats simultaneously, saving you time and reducing conversion errors.
Key Features
- 10+ built-in format presets including ISO 8601 and RFC 2822
- Relative time calculation (e.g., '3 days ago')
- One-click copy for any format
How to Use
- Enter or select a date and time using the input field
- View the date formatted in all supported formats below
- Click the copy button next to any format to copy it
Technical Details
Date formatting uses the JavaScript Intl.DateTimeFormat API and Date object methods. ISO 8601 format follows the YYYY-MM-DDTHH:mm:ss.sssZ standard. RFC 2822 uses the format defined in email standards. Relative time is calculated from the current moment. All processing happens client-side.
FAQ
What is ISO 8601 format?
ISO 8601 is an international standard for representing dates and times as YYYY-MM-DDTHH:mm:ss.sssZ. It's widely used in APIs and data exchange.
What timezone are the dates displayed in?
The ISO 8601 output is in UTC. Other formats display in your local timezone as detected by your browser.
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