Select meeting-like slots
Use 09:00–17:00 with a 15-minute step. There are 33 eligible slots, including 09:00 and 17:00. Generate five distinct slots for a schedule sample.
Choose a UTC clock range
Slots begin at the exact start time. The end is included only if it lands on a step. These are UTC clock labels, without a date or local daylight-saving conversion. Equal start and end means one slot.
Results
Choose your range and generate a batch of time slots.
Inputs and generated results are processed in your browser. These tools do not upload them or persist them in local storage. Copying or downloading creates a record you control.
How to use the Random Time Generator
- 01
Choose a UTC start and end time and select the slot step.
- 02
If the end is earlier than the start, enable crossing midnight to use the next day’s end time.
- 03
Choose a batch size and whether slots may repeat, then generate and export.
Examples
Cross midnight
Use 23:30–00:30, enable midnight crossing, and choose a 30-minute step. Eligible results are 23:30 UTC, 00:00 UTC (+1 day), and 00:30 UTC (+1 day).
The start defines the grid
A range beginning at 09:07 with a 15-minute step yields 09:07, 09:22, 09:37, and so on. It does not round the start to a quarter-hour boundary. The end is a ceiling: it is included only when a grid slot lands exactly on it.
A clock label is not a local appointment
Results explicitly use UTC and do not contain a calendar date. The tool does not convert local time zones or resolve daylight-saving gaps and repeated hours. For an actual appointment, combine the time with a date and use a time-zone-aware planner.
Midnight and equal endpoints
An earlier end time is rejected unless crossing midnight is enabled. Next-day slots are marked (+1 day). Equal start and end represents one eligible slot, not a full day. A range from 00:00:00 to 23:59:59 covers a full UTC day at one-second resolution.
Common questions
Are endpoints inclusive?
The start is always eligible. The end is eligible only if the chosen step reaches it exactly.
Can I generate second-level times?
Yes. Select Every second and enter hours, minutes, and seconds in the time inputs.
Can a slot repeat?
Only when the no-repeated-slots option is turned off. New batches always start from the full slot range.
Why does the output say UTC?
It makes the time standard explicit. These values are not automatically converted to your device’s local time.