The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
The federal fiscal year is the 12-month period beginning on 1 October and ending on 30 September of the next calendar year, so fiscal 2028 runs 1 October 2027 to 30 September 2028.
Congressional Research Service report on the executive budget timeline, read through the EveryCRSReport[1] mirror because congress.gov 403s to every fetcher.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.