Workday milestone planner
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. | ||||
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.