Hi! Below are the details about visiting Notre Dame during Holy Week and Easter (from Sunday, April 13th until Sunday, April 20th), and the schedule of Easter Masses/services.
The full details about visiting Notre Dame, booking a time slot, least crowded times to visit, regular Mass info, etc, can be found on my Reddit post that I regularly keep updated, which has been shared on this forum by other members. I would post its contents here, but it's way longer than the word limit here!
No visitor time slots/reservations will be available from Sunday, April 13th until after Sunday, April 20th.
UPDATE: There will be a limited number of time slots available for April 14th, 15th, and 16th (morning only).
Visitors can still enter by waiting in the "Access without reservations" queue (blue signage), which is on the left side (if you're facing/looking at Notre Dame), but those who are attending for Mass/services and for prayer/worship get priority entrance over visitors/tourists. The crowds are expected to be very high during Holy Week and Easter, so be prepared for the possibility that you could be waiting up to 3 hours, with no guarantee that you'll be able to enter (if the capacity limit is reached).
Notre Dame has modified hours on the following days:
- Wednesday, April 16th: Early closure (at 1:30pm) for visitors/tourists.
- Saturday, April 19th: Early closure (at 4:30pm) for visitors/tourists.
- Friday, April 18th & Saturday, April 19th: The gift shop will be closed.
If you're attending a Mass/service, you can wait in the "Mass and services only" queue. It's on the right side (if you're facing/looking at Notre Dame), and it's marked by a small white sign. Entrance starts 30 minutes ahead of the start time of whichever Mass/service you're attending. But if attending is really important to you, I recommend arriving 1 hour in advance, due to the large number of people that are expected to attend. Entrance is still subject to the available capacity inside the cathedral.
Certain services start at different hours than usual and/or are not happening during Holy Week/Easter (see individual notes beside each one):
Sunday, April 13th (Palm Sunday):
- Palm Sunday Mass at 8:30am
- Palm Sunday Mass at 10:30am (instead of the usual Gregorian Mass at 10:00am)
- Palm Sunday Mass at 12:30pm (instead of the usual International Mass at 11:30am)
- Palm Sunday Mass at 6:00pm
There is no Lauds and no Vespers
Monday, April 14th:
- Regular Masses/services
Tuesday, April 15th:
- Regular Masses/services
Wednesday, April 16th
- Morning Mass at 8:00am
- Afternoon Mass at 12:00pm
- Evening Mass/Chrism Mass led by the Archbishop of Paris at 6:30pm (instead of the usual 6:00pm)
There is no Vespers
Thursday, April 17th:
- Tenebrae at 9:00am
- Evening Mass/Mass of the Lord's Supper led by the Archbishop of Paris at 7:00pm (instead of the usual 6:00pm)
There is no Morning Mass, Afternoon Mass or Vespers
Friday, April 18th (Good Friday):
- Tenebrae at 9:00am
- Veneration of the Crown of Thorns from 10:00am until 5:00pm
- Procession of the Stations of the Cross at 12:00pm (outside on the parvis)
- Procession of the Stations of the Cross at 3:00pm (inside Notre Dame)
- Evening Mass/Celebration of the Passion of the Lord at 7:00pm (instead of the usual 6:00pm)
There is no Morning Mass, Afternoon Mass or Vespers
Saturday, April 19th (Holy Saturday):
- Tenebrae at 9:00am
- Easter Vigil at 9:00pm
There is no Morning Mass, Afternoon Mass, Vespers or Evening Mass
Sunday, April 20th (Easter Sunday):
- Morning Mass at 8:30am
- Lauds at 9:30am
- Gregorian Mass at 10:00am
- International Mass at 11:30am
- Ecumenical Celebration of the Mystery of Easter led by the Archbishop of Paris at 4:00pm
- Diocesan Mass at 6:00pm
There is no Vespers
If you have any questions, just let me know!