OctaruleKerian Date Converter & Holiday Chart
What day is it… in octal? Drop in a date and find its Kerian twin — weekday, month, and holidays all included. Plan your octal week with the atmosphere/planet in its most orderly form.
Select Gregorian Date:
Aquaday
Tropoday
Stratoday
Ozonday
Mesoday
Thermoday
Exoday
Posiday📅 Kerian Holidays – 2025
| Holiday | Kerian | Gregorian |
|---|---|---|
| New Year | Jan 1₈ | 6/1/2025 |
| Valentine's Day | Feb 20₈ | 2/14/2025 |
| St. Patrick's | Mar 17₈ | 3/17/2025 |
| April Fools | Apr 1₈ | 4/1/2025 |
| J-Free Day | Jun 23₈ | 6/19/2025 |
| Midyear Reset | Jun 40₈ | 7/2/2025 |
| July 2nd | Jul 2₈ | 7/4/2025 |
| Octal Day | Aug 10₈ | 8/8/2025 |
| Octal Night | Oct 10₈ | 10/8/2025 |
| Halloween | Oct 37₈ | 10/31/2025 |
| Shadoween | Oct 40₈ | 10/31/2028 |
| Veterans Day | Nov 13₈ | 11/11/2025 |
| Christmas | Dec 32₈ | 1/25/2025 |
| Posiday Reflection | Every 8th Day | Weekly |
📅 About the Kerian Date Converter
This tool converts Gregorian dates into the Kerian calendar — a base-8 system with 8-day weeks, 12 months, and a leap cycle that realigns time with atmospheric rhythm. Discover your octal birthday, track important holidays, or simply explore how time flows differently when measured in octal.
🕗 What Makes It Different?
- 8-day weeks with atmospheric names: Aquaday, Tropaday, Stratoday, and more
- 12 octal months with 35₈ or 40₈ days each
- Leap day added to October (Oct 37₈) every 4 years
- Fixed holiday chart that stays aligned regardless of weekday drift
🎉 What Can You Do With It?
- Find your Kerian birthday and weekday
- Track holidays and recurring events
- Use it alongside the full Kerian calendar or just for fun date explorations
- Teach others how time can be measured in new ways
🧠 Why Base-8?
In octal, every digit is a clean 3-bit chunk — easy to process, easy to read. The Kerian calendar reflects this clarity, offering consistent cycles and rhythm without Gregorian drift.
“When time is measured in rhythm, every day clicks into place.”