Date/Time
The Date/Time category brings together everyday clock and timer tools alongside calendars unique to Japanese culture — rokuyo, the traditional Japanese calendar, and era names — plus tools for age-related customs such as yakudoshi and the traditional 'kazoe' age. It's also handy for planning the timing of Japanese annual events, weddings, and other ceremonies.
The world clock and time zone converter are useful for scheduling meetings across borders or coordinating remote work, while the holiday calendar and rokuyo help with planning events and choosing auspicious dates in Japan.