How random are the generated dates?

Dates are chosen using Math.random(), which is a pseudo-random number generator. This is statistically sufficient for test data, sampling, and non-cryptographic use cases.

What is the maximum number of dates I can generate?

The tool supports up to 500 dates per generation. If "No duplicates" is enabled and the range is smaller than the requested count, the tool will generate as many unique dates as possible.

What date formats are supported?

ISO 8601 (YYYY-MM-DD), US format (MM/DD/YYYY), and European format (DD/MM/YYYY). All formats use zero-padded month and day values.

Are the results sorted?

By default dates are in random order. Enable the "Sort results" option to get them in ascending chronological order.

Does this tool send my data anywhere?

No. All logic runs entirely in your browser using JavaScript. No dates, settings, or any other data are sent to a server.

Random Date Generator

Pick a start date, end date, and count — get that many random dates in ISO, US, or EU format instantly.

Configuration

Start Date

End Date

Number of Dates (1–500)

Output Format

No duplicate dates Sort results ascending

Results

Configure the range and click Generate Dates.

Copied!

Summary

This tool generates any number of random dates within a user-defined start and end range. All computation runs in your browser — no data leaves your device. Results can be copied as plain text for use in spreadsheets, databases, or code.

How it works

Enter a start date and an end date to define the range.
Set how many random dates you want (1–500).
Choose an output format: ISO 8601, US (MM/DD/YYYY), or EU (DD/MM/YYYY).
Optionally check "No duplicates" to ensure every date is unique.
Click "Generate" to produce the dates instantly in your browser.
Copy all results to your clipboard with one click.

Use cases

Populate test databases with realistic date fields.
Create sample datasets for data science projects.
Pick random dates for scheduling or lottery draws.
Generate dummy timestamps for UI prototyping.
Build CSV fixtures for QA test suites.
Randomly assign dates to survey entries.
Simulate historical event timelines for demos.
Pick random birthdays for fictional characters.

Frequently Asked Questions

Last updated: 2026-05-28 · Reviewed by Nham Vu