Apple's fiscal calendar is a 12-month period that starts on the last Sunday of September, and it's divided into four quarters, each with three months.

This app let's users keep tabs on when their appstoreconnect payment is likely to come through.

Notes:

Fiscal Year Start:
Apple's fiscal year begins on the last Sunday of September.

Quarter Structure:
Each fiscal year is divided into four quarters, each containing three months.

Month Lengths:
The first month of each quarter has 35 days, and the following two months have 28 days each.

Week Structure:
The calendar follows the US system, with weeks starting on Sunday and ending on Saturday.

Year Length:
The standard fiscal year has 364 days, with a leap week added every five years.

Payment Schedule:
Apple typically pays developers approximately 33 days after the end of each fiscal month