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.
February 1 became the Union Budget's presentation date in 2017 and has held every year since, including the 2026-27 budget presented on Sunday 1 February 2026. The Lok Sabha Speaker confirms the date each year and has not yet done so for 2027-28, so the pin follows the convention rather than a confirmed announcement.
Indian business daily reporting the Speaker's confirmation of the most recent budget date, establishing the convention this pin follows.[1]
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