Work backward from a deadline.
Enter milestones and dependencies to build a date-only schedule using weekends, 2026–2027 Japanese holidays, and custom holidays.
Build a schedule
Milestones
A milestone with a predecessor starts after that predecessor finishes.
Custom holidays
Save and import settings only in this browser.
About the schedule and exports
CSV contains milestone rows. ICS contains all-day events. No external calendar registration or sync is performed. Cycles and out-of-range dates are rejected before saving or exporting.
Reverse schedule
| Milestone | Predecessor | Business days | Start | Finish |
|---|---|---|---|---|
| Calculate a schedule to see dates. | ||||
Plan with owner capacity
Check whether work fits before the deadline using each owner’s daily capacity, dependencies, weekends, and holidays. Inputs and exports stay in this browser.
Tasks and owner capacity
Tasks for one owner share the daily limit; different owners can work on the same day.
- No custom holidays.
Capacity plan
| Task | Owner | Required minutes | Daily capacity | Start | Finish | Status |
|---|
How to use
- Enter a deadline and the business-day duration for each milestone.
- Select a predecessor when a milestone must follow another one. Cyclic dependencies cannot be calculated.
- Calculate the schedule, then download a local CSV or ICS file if needed.
This is an estimate based on your holiday rules. It does not write to or sync with an external calendar.