Set a local target
Choose a target scan date and time in an explicit IANA time zone.
Shipping operations · Production
Reverse the
payment window.
Work backwards from a local scan target to a latest payment time using explicit workdays, cutoffs, blackout dates, and a one-day planning buffer.
Browser-onlyLocal wall clockNo order data
Reverse calculator
Set the local assumptions.
Review Production · custom assumptions only
Your reverse plan will appear here.
Enter a local target, choose eligible weekdays, and calculate. Errors never render a partial date.
This is a seller-controlled reverse handling plan, not a transit, delivery, tracking, or platform guarantee.
A visible method
Every date assumption stays in the room.
Mark eligible dates
Recurring workdays and manual stop dates are counted in local calendar order.
Keep a buffer
The result shows a conservative extra eligible day for internal planning.
Read this before using the number
A planning aid, not a promise.
This is a seller-controlled reverse handling plan, not a transit, delivery, tracking, or platform guarantee. Do not enter order numbers, addresses, customer names, or account data.
Assumption notes
Inputs stay visible.
The Production keeps the cutoff, workdays, stop dates, and local deadline visible so you can review each input.
FAQ
The scope stays explicit.
What does this planner calculate?
It counts eligible local calendar dates backwards from a target scan time and shows a latest payment time plus an extra planning day.
Which rules does the Production use?
This Production runs only on assumptions that you enter: a local deadline, workday mask, cutoff, and manual stop dates.
Are my dates uploaded or saved?
No. The calculation runs in this browser tab without an account, storage, order import, or event provider.