Koyomi de Go!
The Right Action
on the Right Day
Japanese calendar-based timing strategy for business and life decisions.
Timing is everything. The Japanese have known this for centuries.
In Japan, major business and life decisions still follow the traditional calendar.
Of Japanese weddings are scheduled on Taian (most auspicious day).
Wallet sales spike on Ichiryumanbai-bi (day of ten-thousand-fold return).
Years of Japanese calendar tradition used in business and daily life.
Sound familiar?
Strategic timing should be simple, not a research project.
You want to launch something but have no idea which day is best
You know rokuyo exists but cannot interpret it for business decisions
You missed an auspicious day because you did not check the calendar
You want to combine multiple calendar elements but it is too complex
You found conflicting information about lucky and unlucky days online
You want a quick GO or NO-GO answer, not a lecture on calendar history
Koyomi de Go gives you a clear answer.
One score. One recommendation. For each action, each day.
Timing Score (0-100)
Proprietary score combining rokuyo, lucky days, void times, and lunar data into one actionable number.
GO / Caution / Avoid
Clear recommendation for each action category. No interpretation needed.
Category-Specific
Different scores for business, contracts, investments, career, moving, romance, and more.
Monthly Calendar
Visual calendar showing the best days at a glance. Plan weeks ahead with confidence.
Action Categories
Timing scores for every major decision
Business Launch
Best dates to start a company, open a store, or launch a product.
Contracts & Deals
Optimal timing for signing contracts, closing deals, and partnerships.
Investments
Strategic dates for portfolio moves, account opening, and asset purchases.
Job & Career
When to apply, interview, or make career transitions.
Moving & Home
Lucky dates for moving, buying property, or starting renovations.
Romance & Marriage
Auspicious days for proposals, weddings, and relationship milestones.
Disclaimer: Koyomi de Go provides calendar-based timing data as a reference for decision-making. Results are not guarantees of outcomes. Always use your own judgment for important decisions.
What does today look like?
Check the timing score for your next big decision. It takes 3 seconds.