How to use
- Enter a name, date and time, and pick the time zone the conference uses (AoE by default).
- See the deadline in your local time and UTC with a live countdown, which turns red under three days.
- Add more deadlines as needed, then export them all to a .ics calendar file.
Options explained
- AoE
- Anywhere on Earth is UTC−12, the last time zone to finish any given day. 23:59 AoE on May 15 is 11:59 UTC on May 16.
- Daylight saving time
- US and European zones follow daylight saving automatically; US Pacific is UTC−7 from March to November and UTC−8 otherwise.
- Saving
- Deadlines are kept in this browser, so they are still here next time, but not on other devices or after clearing site data.
23:59 AoE on 15 May in other time zones
AoE is UTC−12, so add 12 hours to get UTC, then add your own offset. The last moment of 15 May in AoE is 11:59 UTC on 16 May:
| Time zone | UTC offset | Local time of the deadline |
|---|---|---|
| UTC | +0 | 16 May, 11:59 |
| US Pacific (PDT) | −7 | 16 May, 04:59 |
| US Eastern (EDT) | −4 | 16 May, 07:59 |
| Central Europe (CEST) | +2 | 16 May, 13:59 |
| India (IST) | +5:30 | 16 May, 17:29 |
| China (CST) | +8 | 16 May, 19:59 |
| Japan (JST) | +9 | 16 May, 20:59 |
Zones that use daylight saving shift by an hour in winter, which is why the tool works from the date you enter rather than a fixed offset.
Frequently asked questions
What is 23:59 AoE in Eastern Time?
AoE is UTC−12, and US Eastern is UTC−4 in summer, so 23:59 AoE is 7:59 the next morning EDT (6:59 EST in winter).
Why do conferences use AoE?
It is the last place on Earth where a given day ends, so a deadline hasn’t passed anywhere until it has passed everywhere — fair to authors in every time zone.
How accurate is the countdown?
It uses your computer’s clock. If your clock is off, turn on automatic time in your system settings.
Privacy
This tool runs entirely in your browser. Your files and text are processed on your device and are never uploaded to our servers.