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MoonCal·A Chinese lunar birthday calendar for Apple Calendar, Google Calendar, Outlook, and Fastmail

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MoonCal guides

Step-by-step tutorials and answers for subscribing to lunar dates in Apple Calendar, Google Calendar and Outlook.

How to add a lunar birthday to Apple Calendar (macOS + iOS)

Apple Calendar has no built-in support for lunar dates, but you can add a lunar birthday in two minutes using an ICS subscription. Step-by-step for macOS and iPhone, with age labels and reminders that actually work.

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How to add a Chinese lunar birthday to Google Calendar

Google Calendar repeats events on the Gregorian calendar, so a lunar birthday set as a yearly repeat drifts wrong every year. Here's how to add one correctly with an ICS subscription that updates automatically — step-by-step for desktop and mobile.

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How to add a Chinese lunar birthday to Outlook

Subscribe to a lunar birthday calendar in Outlook so it stays correct every year. Learn the difference between importing an .ics file and subscribing to a calendar URL — and why the URL is the one you want for recurring lunar birthdays.

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Chinese lunar birthday reminder for your family

Parents and grandparents often celebrate by the Chinese lunar calendar, and those birthdays are easy to forget because they move every year. Here's how to set up a reminder in the calendar app you already use — once, for good.

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How often does Google Calendar refresh ICS subscriptions?

Google Calendar pulls ICS subscription feeds roughly every 8–24 hours and there is no manual refresh button. Here are the real refresh intervals for every major calendar app, plus how to fix subscriptions that look empty or out of date.

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What is a lunar leap month, and why most calendar apps get it wrong

Lunar leap months appear about seven times every nineteen years and break naive birthday-repeat logic. Here is what they are, why your calendar app probably ignores them, and the three strategies MoonCal uses to handle them correctly.

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