Time Slot Generator

Use the custom start and end time controls to define when the schedule opens and closes. The page supports normal daytime schedules and overnight windows. If you need 24-hour output, turn off 12-hour output before copying the final list.

Pick the slot duration from the custom dropdown, then add buffer minutes if people need transition time between appointments. Turn on the break window for lunch, cleanup, staff breaks, or blackout periods. Exclude partial slots when every appointment must have the same length.

Copy text for emails or notes, CSV for spreadsheets, and JSON for apps or internal tools. If the schedule uses precise 24-hour language, verify the format with the military time converter before sharing with operations teams.

A time slot generator creates evenly spaced appointment, meeting, class, or work blocks between a start time and an end time. Instead of writing formulas or manually typing each row, you choose the rules once and the page builds the list for you.

Set the opening time, closing time, and choose 15 minutes as the slot duration. If you need reset time after each appointment, add a buffer. If lunch should not be bookable, turn on the break window and set the blocked range.

Yes. Buffer minutes are added after each generated slot before the next one starts. A 30-minute appointment with a 10-minute buffer creates starts every 40 minutes. This helps with notes, cleaning, travel, setup, or room turnover.

Yes. Enable the break window and set the blocked start and end time. Any slot that overlaps that window is skipped. This is useful for lunch, staff breaks, cleanup periods, team huddles, or blackout periods that should not appear in a public schedule.

You can exclude the final partial slot or allow a shortened final slot. Excluding partial slots keeps every appointment the same length. Allowing a partial slot fills the whole available window, which can be useful for informal office hours or end-of-day availability.

Yes. Copy plain text for messages, CSV for spreadsheets, or JSON for apps and internal systems. CSV includes start, end, duration, and capacity fields, so it is easier to paste into spreadsheets or booking templates without manual cleanup.

Yes. The controls collapse into a compact mobile layout with touch-friendly steppers and buttons. The output remains close to the inputs, so you do not need to scroll far away to check whether a slot rule changed the schedule.

No. The schedule is generated locally in your browser. Randomly.online does not upload your appointment windows, break settings, generated slots, or exported text. This is important for private clinic, school, staffing, or internal team schedules.