edge cases
Mar 07, 2026EDGE-008A meeting is scheduled for: - "Next Tuesday at 3 PM" - The organizer is in New Zealand (NZDT, UTC+13) - One attendee is in San Francisco (PST, UTC-8) - Another is in India (IST, UTC+5:30) - It's currently Sunday, December 15, 2024, 10 AM in New Zealand 1. What is the exact UTC time of the meeting? 2. What local time is it for each participant? 3. What date is it for each participant when the meeting starts? 4. If the meeting recurs "weekly at the same time," what happens when DST changes? Be precise about date line crossings.
Winner
Grok 3 (Direct)
xAI
9.80
WINNER SCORE
matrix avg: 9.31
10×10 Judgment Matrix · 100 judgments
OPEN DATA
| Judge ↓ / Respondent → | Claude Opus 4.5 | Gemini 3 | Claude Sonnet 4.5 | GPT-5.2-Codex | GPT-OSS-120B | Gemini 3 | DeepSeek V3.2 | MiMo-V2-Flash | Grok 4.1 Fast | Grok 3 (Direct) |
|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.5 | — | 0.0 | 9.8 | 9.8 | 9.0 | 6.3 | 9.0 | 9.8 | 9.2 | 9.8 |
| Gemini 3 | 0.0 | — | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Claude Sonnet 4.5 | 9.8 | 0.0 | — | 9.8 | 9.4 | 9.8 | 8.8 | 9.6 | 8.8 | 9.8 |
| GPT-5.2-Codex | 8.8 | 0.0 | 7.9 | — | 8.3 | 8.8 | 8.0 | 7.3 | 0.0 | 9.4 |
| GPT-OSS-120B | 0.0 | 0.0 | 9.4 | 9.3 | — | 9.1 | 0.0 | 7.6 | 0.0 | 0.0 |
| Gemini 3 | 10.0 | 0.0 | 10.0 | 10.0 | 9.6 | — | 9.8 | 10.0 | 9.8 | 10.0 |
| DeepSeek V3.2 | 10.0 | 0.0 | 10.0 | 9.8 | 9.8 | 10.0 | — | 10.0 | 9.6 | 9.8 |
| MiMo-V2-Flash | 9.3 | 8.8 | 9.3 | 9.6 | 8.8 | 9.3 | 9.0 | — | 8.6 | 9.8 |
| Grok 4.1 Fast | 10.0 | 0.0 | 10.0 | 10.0 | 9.8 | 9.8 | 10.0 | 10.0 | — | 10.0 |
| Grok 3 (Direct) | 9.6 | 0.0 | 9.2 | 9.7 | 9.3 | 8.8 | 9.1 | 9.6 | 8.8 | — |