Is there a way to add the moon cycles and eclipses?

Thanks for your question. We do not plan to offer moon cycles and eclipses. Hebcal's mission is to increase awareness of Jewish holidays and to help Jews to be observant of the mitzvot.

Calendars created by Hebcal are easily downloaded and imported into various calendar apps, including iPhone, Google Calendar, Outlook PC, Outlook Web, macOS Calendar, and any app that supports iCalendar (.ics) feeds or subscriptions.