A call sheet without repeated arithmetic

Know what starts next.

Set the opening time, enter your segments, and let each cue follow the last. Change a duration to update the whole running order.

Free · one event timeline · calculations stay in your browser

Build your running order

Use a row for every talk, activity, changeover or break.

Start clock

24-hour clock: HH:MM or HH:MM:SS. Day 0 is your starting day; no date or timezone is assigned.

Ordered segments. Duration format: minutes:seconds or hours:minutes:seconds.
No.	Segment label	Duration	Order

45:00 means 45 minutes. Use 1:00:00 for one hour. Whole seconds only. An intentional 0:00 row becomes a milestone at the current clock.

Up to 120 rows and 168 hours in total. Labels are optional, single line, at most 120 characters.

Your cue sheet

Every segment is contiguous. Enter a named break when you need one.

Total elapsed

Finish clock

Segments

Relative days keep midnight crossings visible. Elapsed time starts at zero.
No.	Segment	Duration	Start	End	Elapsed at end

Day +1 is one midnight boundary after the starting clock day. These are plain 24-hour planning blocks, without calendar, daylight-saving or leap-second conversion.

The example, made inspectable

19:30 opening. 21:30 finish.

The default order starts at 19:30, with a 45-minute opening, a 15-minute break, and a one-hour session. The cues are 19:30, 20:15 and 20:30. The finish is 21:30, after two hours.

Change the break to 20:00 and the last session moves to 20:35, finishing at 21:35. Read midnight examples, duration formats and model limits.