I called the church for you tonight, at 1-808-923-7024 and got the answer to your question on a voice recording: -- Christmas Eve masses are at 6 pm, 9 pm, and 12 pm. -- Christmas Day masses are at 6 am, 8 am, 10 am, and 5 pm. Please note that I called at 10:35 pm in California tonight when it was 8:35 pm Honolulu time so I got the recorded message. (Hawaiian Islands do NOT observe Daylight Savings Time changes.) The recorded message said to Press 2 for the Mass Schedule, which I did. Then I pressed 4 for the Christmas Mass Schedule. I would advise calling the church just before Christmas to make sure you have the most current information AND to ask when the Tongan choir will be singing -- the singing is a beautiful addition to the regular church service and will delight your senses. It almost brought me to tears. The church is located at 130 Ohua Avenue. Ohua Avenue is perpendicular to Kalakaua Avenue that runs though the heart of the Waikiki area. I recall the church being across the street from the big Marriott Hotel. There is another building fronting Kalakaua Avenue in front of the church, so you have to enter off Ohua Avenue. Church has a website. Web site date is 2013, so you may want to call the church to ensure you have up-to-date information. Enjoy yourselves in Oahu.