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Opening Hours & Library Holidays

Days Closed

Sundays, National holidays, the year-end and New Year's holidays and the third Wednesday of the month (for refiling).

Additionally, the Library could be closed without prior notice in case of natural disasters or other public emergencies. Announcements are posted on the National Diet Library website and our official Twitter account.

  • *To use the Rare Books and Old Materials Room on service Saturdays, it is necessary to make a reservation.
  • March 2024
    Library Holiday
    3rd, 10th, 17th, 20th, 24th, 31st
    Sun Mon Tue Wed Thu Fri Sat
    1 2
    3 4 5 6 7 8 9
    10 11 12 13 14 15 16
    17 18 19 20 21 22 23
    24 25 26 27 28 29 30
    31
  • April 2024
    Library Holiday
    7th, 14th, 17th, 21st, 28th, 29th
    Sun Mon Tue Wed Thu Fri Sat
    1 2 3 4 5 6
    7 8 9 10 11 12 13
    14 15 16 17 18 19 20
    21 22 23 24 25 26 27
    28 29 30

For the yearly schedule of Library closure, please see the Library Calendar.

Library Open Hours

Regular library hours are as follows.

Additionally, the National Diet Library is sometimes forced to change its library hours temporarily due to weather impacts on traffic conditions. Announcements are posted on the National Diet Library website and our official Twitter account.

*Some special materials rooms have different service hours. For more information, please see the guide, "Special Materials Rooms and Reading Rooms."

User Registration 9:20-18:30 (16:30 on Saturday)
Opening hours 9:30-19:00 (17:00 on Saturday)
Requests for closed stack materials 9:30-18:00 (16:00 on Saturday)
Same-day Photoduplication Requests 10:00-18:00 (16:00 on Saturday)
Printouts of electronic resources 10:00-18:00 (16:00 on Saturday)
Later date photoduplication requests (sent by mail) 10:00-18:30 (16:30 on Saturday)

Cafeteria, Coffee shops & Shop

Cafeteria
(Main Bldg. 6th Floor)
11:00-18:30 (15:00 on Wednesday and Saturday)
  • *Orders will be taken until 30 minutes before closing time.
  • *Please consume food and beverages brought in from outside in the designated area.
Shop
(Main Bldg. 6th Floor)
9:30-18:30 (17:00 on Saturday)
Coffee shop
(Main Bldg. 3rd Floor)
11:00-16:00
  • *Orders will be taken until 20 minutes before closing time.
Coffee shop
(Annex 1st Floor)
11:00-15:30
  • *Lunches are on sale from 11:00 to 14:00. Only beverages are available from 14:00 to closing.
  • *Orders will be taken until 15 minutes before closing time.
  • *Closed on 1st, 3rd and 5th Saturday.

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