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Opening Hours & Library Holidays

Days Closed

Sundays, National holidays, year-end and New Year's holidays, third Wednesday of every 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.

Opening Calendar

  • April 2020
    Library Holiday
    5th, 12th, 15th, 19th, 26th, 29th
    SunMonTueWedThuFriSat
    1234
    567891011
    12131415161718
    19202122232425
    2627282930
  • May 2020
    Library Holiday
    3rd, 4th, 5th, 6th, 10th, 17th, 20th, 24th, 31st
    SunMonTueWedThuFriSat
    12
    3456789
    10111213141516
    17181920212223
    24252627282930
    31

For the yearly schedule of days the library is closed, see the "Library Calendar".

Hours of Service

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.

Library hours9:30 - 18:00
Reader serviceReading hours9:30 - 18:00
Request for closed stack materials (registered users only)10:00 - 17:15
Inter-site request service (registered users only)9:30 - 17:30
Photoduplication service Same-day photoduplication service 9:30 - 17:00
Printouts of electronic materials9:30 - 17:00
Self-service photoduplication 9:30 - 17:30
Later date photoduplication (registered users only)10:00 - 17:45
Reference service9:30 - 18:00
User registration9:30 - 18:00
Cafeteria11:00 - 13:30
Vending machine area9:30 - 18:00

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