The claim
In September 2024, each day of the week appears exactly four times- a rarity occurring only once every 823 years according to Chinese Feng Shui beliefs.
Original review summary
FACTLY says each weekday appears at least four times in every month with 28 or more days; in September, two weekdays also appear a fifth time. It rejects the 823-year rarity claim, noting that months with five Fridays, Saturdays, and Sundays occur at least once a year in a 31-day month starting on a Friday.[S1]
Research date:
Sources and attribution
- [S1] FACTLY original review
Original review · Retrieved October 16, 2026