Several astronomical calendars can be found around the web with a quick search. Once you do, go to the Other Calendars drop down menu to “Add by URL” and paste in that calendar’s web address. To add an online calendar, you need to find one in the iCalender/iCal (.ics) format. You can also subscribe to online calendars made by other people and have the dates appear in your Google Calendar alongside your other events and appointments. Click the Preview link to see a sample or the Subscribe link to add a selected item to your Google Calendar. The More tab has calendars for the phases of the moon, sunrise and sunset times, and even the stardate system used in the “Star Trek” universe. For one, the Google Calendar screen itself includes a drop-down menu in the Other Calendars area on the left side of the screen.Ĭlick the menu arrow there and select “Browse Interesting Calendars” to see lists of holiday, sports and other types of calendars you can add. You can easily add solstices, equinoxes, moon phases, holidays and more to your Google calendar in a few ways. How can I automatically add the solstices and equinoxes to my Google calendar without having to manually enter them?Ī.