Random Clock Time Generator

Generate a random clock time in 12-hour or 24-hour format, within any range you set, for scheduling ideas, games, or writing prompts.

About this generator

This generator draws a random clock time from any range you set, in 12-hour or 24-hour format, with adjustable precision down to the exact minute or rounded to the nearest 5, 15, or 30 minutes.

Every result here is drawn using crypto.getRandomValues() -- the Web Crypto API's cryptographically secure randomness -- instead of Math.random(), so it's genuinely unpredictable, not just statistically random. Learn more.

What people use it for

It's used for scheduling ideas, randomizing an appointment or meeting slot within business hours, games and writing prompts that need a specific time detail, or any time you want a fair, unbiased time pick within a range.

How it works

Generate picks a random point within your time range using the site's cryptographically secure randomness, guaranteed not to repeat whatever result is currently showing in single-result mode, snapped to your chosen precision before formatting.

Common questions

Can I set a custom time range, like only business hours?

Yes -- open the range settings to set any start and end time; it defaults to the full 24-hour day.

What precision options are available?

Exact minute, or rounded to the nearest 5, 15, or 30 minutes, in either 12-hour or 24-hour format.

Will it show me the same time twice in a row?

Not in single-result mode -- each new roll is guaranteed to differ from the one currently on screen.

Can the range cross midnight, like 10 PM to 2 AM?

The range is treated as a straightforward span between the two times you set, not a wraparound -- set the earlier time as the minimum and the later time as the maximum.

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