Imagine CupMicrosoft Imagine Cup
Startup applications · Nov 2 – Feb 28, 2027
2026–2030 calendar
Competition calendar
Tech competitions highlighted (⚡), science olympiads, hackathons and more. Filter by age and click an event for details.
⚡ Upcoming tech dates
48h HackathonsMLH GHWOnline hackathon weekNov 6–12, 2026happening now</> ProgrammingBebrasWorld-Wide Bebras Week of computational thinkingNov 9–13, 2026happening now🔐 CybersecurityCSAWCSAW Cybersecurity Games Global FinalsNov 12–14, 2026in 2 days48h HackathonsJunctionHackathon (48 h)Nov 13–15, 2026in 3 days
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Long registration periods appear only on the days they open and close.
This month's competitions
December 2026
6 dates
Advent of CyberTryHackMe Advent of Cyber
Daily security and hacking challenges (December 1 to 24) · Dec 1–24, 2026
MLH GHWMLH Global Hack Week: Open Source Week
Online hackathon week (open source) · Dec 4–10, 2026
CSEdWeekComputer Science Education Week (CSEdWeek) and Hour of AI
Hour of AI (formerly Hour of Code): free activities · Dec 7–13, 2026
Hacker CupMeta Hacker Cup
Meta Hacker Cup World Finals · Dec 12, 2026
This month, no set day · announcements and estimates
AoCAdvent of Code
Daily programming puzzles (from December 1 to mid-month) · December 2026 (days to be confirmed)
Confirmed: official days · Month announced: days to be confirmed · Estimate: the month it is usually held, not announced yet · No forecast: date unknown.
Dates checked on the organizers' official websites and calendars (last review on November 6, 2026). They may change: always confirm on the official website before registering or traveling.