"auspicious day" is a correct and usable phrase in written English.
You can use it when referring to a special occasion or day that is considered fortunate or lucky. For example, "The couple chose their wedding day as an auspicious day to begin their married life together."
It was an auspicious day all round for British canoeing.
Today was considered the most auspicious day to bathe in the river in Nasik.
If Nicolson knows what the 4-year-old eldest son of the house was doing on that auspicious day, he doesn't tell us.
"Today is a day that Thai people, nationwide, believe is an auspicious day," Suthep said from protest headquarters, the seized government complex in north Bangkok.
Finally, it may not have been the most auspicious day for a market debut but Sheffield software group Wandisco managed to get off to a bright start.
And if your guests tend to be superstitious, you can add horoscopes to the Evite (and hope it's an auspicious day to eat turkey).
It was an auspicious day for a visit by Defense Secretary Donald H. Rumsfeld, to meet with the country's new leaders.
On the advice of an astrologer, Nguyen Van Thieu changed his birthday from a date in November 1924 to a more auspicious day, April 5 , 1923
But as Saturday fell on a very auspicious day in the Chinese calendar, every hotel in Nanjing was booked for weddings.
According to the astrological positions of the sun, the moon and Jupiter, this morning's predawn offered the most auspicious moments of the most auspicious day in this most auspicious of events.
The couple picked up the boat on Jan . 13 , 2006an auspicious day in the Chinese calendar for a big move, and a group of friends came by to see it and share some celebratory champagne.
