When does the Mid-Autumn Festival fall in 2026 and 2027, and why does the date shift every year?
If you’re trying to mark the Mid-Autumn Festival on a Western calendar, you’ve probably noticed it doesn’t land on the same day every year. Here’s what’s actually confirmed about the upcoming dates and the reason behind the shift.
When is it in 2026 and 2027?
- 2026: September 25
- 2027: September 15
- (For comparison, the 2025 date was October 6.)
📅 As you can see, the gap between years isn’t fixed — 2027’s date is more than three weeks earlier than 2025’s.
Why does the date change every year?
The Mid-Autumn Festival always falls on the 15th day of the 8th month of the lunisolar calendar — not a fixed spot on the Gregorian calendar most of the world uses day to day. Because a lunisolar calendar tracks moon cycles rather than the solar year, that 15th-day mark drifts against the Gregorian calendar from one year to the next.
The result: on the Gregorian calendar, the festival can land anywhere from September 7 to October 8, depending on the year. 2026 and 2027 both fall within that same window, just at different ends of it.
Worth double-checking closer to the date
Lunisolar-to-Gregorian conversions are well established, but if you’re planning travel or time off around the festival, it’s still worth confirming the date against a current calendar or official announcement as the year gets closer, rather than relying on a date you saw months in advance.
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