AoE to Brasília time
Anywhere on Earth (AoE, UTC−12) is 9 hours behind Brasília Time, used in São Paulo, Rio de Janeiro and Brasília.
When is a “23:59 AoE” deadline in Brazil (BRT)?
23:59 AoE = 08:59 next day
So a paper due “15 May, 23:59 AoE” can still be submitted until 08:59 next day in Brazil (BRT).
Convert a specific AoE time
AoE to Brazil (BRT) conversion table
| AoE (UTC−12) | Brazil (BRT) (UTC−3) |
|---|---|
| 00:00 | 09:00 |
| 01:00 | 10:00 |
| 02:00 | 11:00 |
| 03:00 | 12:00 |
| 04:00 | 13:00 |
| 05:00 | 14:00 |
| 06:00 | 15:00 |
| 07:00 | 16:00 |
| 08:00 | 17:00 |
| 09:00 | 18:00 |
| 10:00 | 19:00 |
| 11:00 | 20:00 |
| 12:00 | 21:00 |
| 13:00 | 22:00 |
| 14:00 | 23:00 |
| 15:00 | 00:00 next day |
| 16:00 | 01:00 next day |
| 17:00 | 02:00 next day |
| 18:00 | 03:00 next day |
| 19:00 | 04:00 next day |
| 20:00 | 05:00 next day |
| 21:00 | 06:00 next day |
| 22:00 | 07:00 next day |
| 23:00 | 08:00 next day |
| 23:59 | 08:59 next day |
Upcoming conference deadlines in Brazil (BRT) time
- CVPR 2027 paper registration: Wed, 11 Nov 2026, 08:59
- CVPR 2027 paper submission: Tue, 17 Nov 2026, 08:59
- CVPR 2027 supplementary material: Tue, 24 Nov 2026, 08:59
- ACL 2027 ARR submission: Tue, 5 Jan 2027, 08:59
- IJCAI 2027 abstracts: Tue, 5 Jan 2027, 08:59
- IJCAI 2027 full papers: Tue, 12 Jan 2027, 08:59
Questions
Is AoE ahead of or behind Brazil (BRT)?
Behind. AoE is the last timezone on Earth, so it’s always earlier there than in São Paulo, Rio de Janeiro and Brasília. When a date ends in AoE, it has already ended everywhere else.
Does AoE change with daylight saving time?
No. AoE is fixed at UTC−12 all year. Brasília Time doesn’t use daylight saving either, so the gap is always 9 hours.
Why do conferences use AoE?
It’s the latest timezone, so no author anywhere loses part of the final day. If it’s still the deadline date somewhere on Earth, you’re on time. More about AoE.