Live math canvas
USCIS 90-Day Rule Calculator: 2026-09-04. Entry 2026-06-07; day 90 is 2026-09-04; day 91 is 2026-09-05. Date arithmetic only.
Formula applied
CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.
Day 90 = entry date + 89 calendar days. Day 91 = entry date + 90 calendar days.Your live breakdown
These values come from the controls above and update when the calculator changes.
Resulting answer
Entry 2026-06-07; day 90 is 2026-09-04; day 91 is 2026-09-05. Date arithmetic only.
Assumptions used
The visible assumptions define the boundary of this calculation.
Master’s Tip
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Printable record
Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.
Day 90 = entry date + 89 calendar days. Day 91 = entry date + 90 calendar days.
For entry on 2026-06-07, day 90 is 2026-09-04 and day 91 is 2026-09-05.
Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Methodology & Accuracy
CalculationTime pages are built around visible arithmetic: the formula, assumptions, worked example and practical limitations are shown so the result can be checked rather than simply trusted.
Day 90 = entry date + 89 calendar days. Day 91 = entry date + 90 calendar days.
Basis: transparent planning arithmetic using the visible inputs and assumptions on this page.
Where a calculator follows a named legal, trade or industry standard, that standard is cited visibly. Otherwise the page uses transparent general arithmetic and states its limits.Professional note: print the input values, formula, result and date together so the calculation can be reviewed later.
The USCIS 90-day calculator counts 90 calendar days from a US entry date and shows the day-90 and day-91 markers.
No. Use it as a transparent planning estimate, then verify the current rule, rate, contract or official source for the decision you are making.