#leap-year on Hacker News

2 stories tagged leap-year, newest first.

A leap year check in three instructions (hueffner.de)

386 points by gnabgib 1 year ago | 130 comments

Blog post by Falk Hüffner explaining a leap year check for years 0–102499 using a multiply, mask, and compare in about three CPU instructions.

445 points by sjr1 2 years ago | 419 comments

Ask HN thread where users share leap day bugs they encountered, such as billing overcharges and failing date-based unit tests.