Terms of Service

The operator of koyomi-time (https://koyomi-time.online) is Radosław Skórzak-Kaźmierczak (address: ul. Widokowa 82, 34-324 Twardorzeczka, Polska; email: radekaz@gmail.com).

Contact for these terms: radekaz@gmail.com.

These terms apply to koyomi-time only. They are not the terms of Luna Story, tool-nest.site, or other services.

Unless we say otherwise, the age and date tools on koyomi-time are free to use. You do not need an account.

We may show ads (for example Google AdSense) when you consent. If we later add paid options, we will say so on the relevant pages or in these terms.

We work to keep the tools accurate, but we do not warrant that results are complete, fit for a particular purpose, or that the site will always be available.

For government procedures, contracts, insurance, school enrolment, medical or other important decisions, rely on official guidance or a qualified professional. To the extent permitted by law, we are not liable for decisions based solely on tool output.

Kazoedoshi (traditional age) used for yakudoshi, shrine customs, and similar practices is not the same as man-nenrei (legal age, which increases on the day before the birthday under Japan’s Age Calculation Act).

We do not guarantee that a display matches a particular shrine, sect, or region. Confirm yakudoshi or ceremonial questions with the relevant shrine or temple, or with trusted guidance.

You must not break the law, infringe others’ rights, overload the site or infrastructure with automated access or scraping without our prior consent, or undermine security.

You must not use results for fraud, impersonation, or other unlawful purposes.

We may update these terms for legal, feature, or security reasons. The current version is always published at https://koyomi-time.online.

These terms apply from 18 August 2026. The Japanese text is the binding version; English is a translation for convenience. Matters not covered here are governed by Japanese law.