On 24 December, churches hold masses from about 6pm to midnight; the main mass is usually around 9–10pm.
- On 25 December, masses run from about 7am into the evening.
- St. Joseph's Cathedral, Cua Bac and Ham Long are the three central churches visitors most often go to watch and photograph.
- Non-Catholics are welcome to stand in the churchyard to watch the service and see the nativity scene.
Note: Keep quiet and avoid flash photography of people at prayer. Times can change by year and parish.