BrowserTools

Random Time Generator

Random times of day in 12h or 24h format

By Guga — BrowserTools maintainer, Tbilisi, Georgia Updated 2026-09-10
Free Private No uploads
What is Random Time Generator?

The window is set with two HH:MM text fields, defaulting to 00:00 and 23:59, and the generator converts both to minutes since midnight before drawing — so a window such as 09:00 to 17:00 really does confine every result to working hours. Minute is the smallest unit: there is no seconds field, which is what you want for a timetable or a shift pattern and a limitation if you are mocking up a log with sub-minute timing. The Format dropdown switches between 21:45 and 9:45 PM, handling the midnight and noon edges so you never see 0:30 AM or 12:00 midnight's neighbour rendered wrongly. Count runs from 1 to 200. Times are independent draws, so the same value can appear twice in a batch.

Generate random times between any start and end time, formatted for 12-hour or 24-hour clocks. Handy for schedule mockups, timetables and testing time-based logic.

Private Random Time Generator In Your Browser

Random Time Generator is processed locally with client-side JavaScript. Your files never touch a server, and there is no queue to wait in.

Step-by-Step

How to use Random Time Generator

1

Type two bounds into From (HH:MM) and To (HH:MM); reversed bounds are corrected for you.

2

Pick a Format: 24-hour (21:45) or 12-hour (9:45 PM).

3

Decide how many times you need, up to 200.

4

Roll them, then copy the list, one entry per line.

Key Capabilities
  • Any window you can express in HH:MM, with reversed bounds corrected automatically.
  • 12-hour output handles midnight and noon without producing 0:30 or a doubled twelve.
  • Batch sizes from 1 to 200 times per run.
  • Invalid input raises a visible error rather than falling back to a default window.
Common Use Cases
  • A restaurant manager drafting tomorrow's cover sheet needs forty booking slots generated between noon and nine in the evening.
  • A developer testing a scheduling conflict rule fills a calendar with random half-hour-friendly times across a working day.
  • A QA engineer runs a batch through a time parser to confirm it handles midnight, noon and one-digit hours correctly.
Clear Answers

Frequently Asked Questions

Can I get seconds as well?
No. The generator works in whole minutes since midnight, which is the right granularity for schedules and shift patterns. Mock log data with second-level precision elsewhere.
What happens if I put an impossible time like 25:00?
The panel catches it and reports that you need a valid HH:MM value, rather than quietly wrapping to the next day. Hours above 23 and minutes above 59 are both rejected.
Why do the same minutes keep appearing?
In a two-hour window there are only 121 distinct minutes, so a batch of 200 has to repeat. Narrow the window or lower the count if every row needs to be distinct.