Random Time Generator

What is the Random Time Generator?

Every minute of the day — 1,440 possibilities, or 86,400 with seconds — has the same chance. Use it for timestamps in test data, random alarm challenges or deciding when to start a task.

The 24-hour clock is the everyday standard in most of the world and the norm in aviation, medicine and the military, while the 12-hour clock with AM and PM dominates daily life in the United States, Australia and several other countries. Generating both styles is useful when you test software for an international audience: a form that accepts 14:30 should also understand 2:30 PM, and the reverse. Random times are equally handy for scheduling surprise quizzes, picking a check-in moment for a habit or setting the start of a game round.

How to use the Random Time Generator

1. Adjust the options above to match what you need.
2. Press Generate (or hit Enter / Space) to create fresh results instantly.
3. Click any result to copy it, or use Copy all.
4. Download everything as CSV, JSON or TXT, or share a link with your settings.

Popular uses

• Test data — appointment and log times.
• Productivity — random check-in times for habits.
• Games — time-based challenges.

Why use RandNow?

• Instant & unlimited — no sign-up, no daily caps.
• Private by design — results are generated in your browser, not on our servers.
• Export-ready — copy, CSV, JSON and TXT downloads built in.
• Cryptographically random — powered by the Web Crypto API.

Midnight, noon and other tricky times

The 12-hour clock has a famous trap: 12:00 AM is midnight, the start of the day, and 12:00 PM is noon. Because people mix these up, timetables and contracts often write “12 noon” or “12 midnight” instead. On the 24-hour clock, the day runs from 00:00 to 23:59, and leading zeros keep values the same width — 07:05 rather than 7:5. The ISO 8601 standard writes times as hh:mm or hh:mm:ss, which is what most programming languages expect when parsing.

Using random times in test data

Daylight saving time causes some of the trickiest bugs. In places that observe it, one hour is skipped in spring and another is repeated in autumn, so a local time such as 2:30 at night may not exist on one date and may happen twice on another. Storing timestamps in UTC and converting only for display avoids most of the trouble. Pair random times with random dates to build realistic log entries, booking slots and delivery windows. Choose your clock style and press Generate to get started.