Generates random dates uniformly distributed within a date range you specify. Useful for test data, mock databases, or any scenario where you need realistic-looking date values. Runs entirely in your browser.
Random Date Generator: create high-quality chronological datasets instantly with our versatile date range tool. Whether you're seeding a database with mock data or preparing a calendar UI for stress testing, this utility provides uniformly distributed dates between any two endpoints. All calculations are performed in your local browser, keeping your date parameters and output completely private.
Our generator supports the formats most commonly used by developers and QA engineers. ISO 8601 dates are the gold standard for API testing and database seeding, while Unix timestamps (seconds since epoch) are ideal for back-end logic verification. This test data generator ensures that your random dates are perfectly formatted and ready to be integrated into your fixtures or load-test seeds. From ancient history to the far future, our tool handles any range supported by modern browsers.
Yes. The tool picks a random integer of milliseconds between the two epochs and converts back to a Date, so every millisecond in the range has equal probability. There is no weighting toward weekdays, business hours, or any other subset.
Yes - the random pick is to-the-millisecond, so every output has a meaningful HH:MM:SS.sss component. If you only want dates (no time), strip the time portion after generating.
ISO 8601 outputs include the "Z" suffix and are in UTC. Locale strings use the visitor's browser locale and time zone. Unix timestamps are in seconds since 1970-01-01 UTC, which is timezone-independent by definition.
Yes. The Date object handles negative epoch values, so any year from roughly −271,000 to +275,000 is valid. ISO 8601 outputs for very-far-past or future years use the extended-year notation browsers implement.
Generate your required dates in seconds with this efficient and free utility. Explore more NUMBERS tools at Chunky Munster and make this Random Date Generator a part of your daily development workflow.