Date Format Converter
Convert dates between common formats.
Convert dates between common formats.
Date to format
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Date Format Converter
Convert dates between common formats.
Tool guide
Free Online Date Format Converter
Enter a date and time with the browser's date-time control and convert that instant into ISO 8601, common numeric and readable date formats, and Unix seconds or milliseconds.
Steps
How it works
- Choose a date and time using the browser input.
- Run the formatter in your browser.
- Review ISO, numeric, readable, and Unix representations.
- Copy the result or download it as a text file.
Highlights
Key features
- Outputs ISO 8601 and YYYY-MM-DD values.
- Produces MM/DD/YYYY and DD/MM/YYYY formats.
- Includes two readable month-name formats.
- Returns Unix seconds and Unix milliseconds.
- Uses a controlled date-time input to avoid ambiguous typed date syntax.
Use cases
Common uses
- Create an ISO timestamp from a local date and time.
- Switch between US-style and day-first numeric dates.
- Generate readable date labels.
- Obtain Unix timestamp values for a selected date-time.
Notes
Limitations to know
- The input is a browser date-time field, not a free-form parser for arbitrary date strings.
- The available output formats are fixed and cannot be customized.
- The entered date-time is interpreted in the browser's local timezone.
- Formatting does not provide a source and target timezone selector.
- Locale rendering of the readable format can vary with browser settings.
FAQ
Frequently asked questions
Which date formats are available?
The output includes ISO 8601, YYYY-MM-DD, MM/DD/YYYY, DD/MM/YYYY, two readable formats, Unix seconds, and Unix milliseconds.
How are ambiguous dates interpreted?
The tool avoids free-form ambiguous strings by using the browser's structured date-and-time input.
Does it support ISO 8601?
Yes. The result includes a full ISO 8601 timestamp and a separate YYYY-MM-DD date.
Can it convert Unix timestamps as input?
No. It outputs Unix values from a selected date-time. Use Unix Timestamp Converter to enter seconds or milliseconds.
Does formatting change the timezone?
No source-to-target timezone conversion is performed. The selected local date-time is represented in several formats.