[marcus0x62]

Some of them don't even start on a month boundary, or even on the same day every year. Cisco, for instance, has a fiscal year based on a retail calendar[0]; their fiscal year ends on the last full week in July.

0 - https://nrf.com/resources/4-5-4-calendar

[conductr]

It is for year over year comparability for anyone unfamiliar

[smcin]

Well yes for a strictly non-consumer company, since their revenues don't depend on Superbowl, Valentine's Day, Easter, Memorial Day, Fourth of July, Amazon Prime Day, Labor Day, Thanksgiving/Cyber Monday, Christmas. They probably depend more on Fed rate cuts/rises affecting corporate infrastructure budget.

("Honey I got you that Cisco 4500 you always wanted...")

Whereas for anything consumer e-commerce, you'd want a calendar with variable/sliding dates (e.g. SuperBowl) but that at least keeps the above events in the same quarter YoY, consistently.