About ClockInterval

ClockInterval uses nominal wall-clock arithmetic. Start and end are 24-hour HH:MM values; Same day uses end day 0 and Next day adds exactly 1440 nominal minutes. An earlier same-day end is invalid. Equal times give 0 minutes on the same day and 1440 minutes with Next day.

Planning a same-day window

The Day Timeline Builder supports up to 12 positive activities inside one same-day window. Occupied time is the length of their union. Free time is the window minus occupied time. Overlap extra is the activity-duration sum minus occupied time. Touching edges do not overlap; an empty plan is entirely free.

An alternative moves one selected activity while retaining the others. It is a proposal for discussion, not confirmation that people or resources are available.

Limits

No dates, time zones, daylight-saving changes, leap seconds, breaks or calendar availability are inferred. A nominal day is 1440 minutes. For actual elapsed time across clock changes, use a timezone-aware dated tool.

Guide and workbook

The planned free title is Elapsed Time Quick Start Guide. The planned $19.99 paid title is The Everyday Time Planning Workbook. Books, signup, checkout and delivery are not configured.