Tokyo Main Library

• Opening Hours & Library Holidays
• On-site User Guide of the Tokyo Main Library
• Information for Visitors
• Services for Persons with Disabilities (Tokyo Main Library Visitor Information)
• Digitization of library materials

• April 17, 2025
  National Diet Library expected to be crowded before and after Golden Week holidays
• February 7, 2025
  We are experiencing a high volume of new user registrations and requests to change user information
• June 22, 2023
  Elimination of entry restrictions of the Tokyo Main Library
• August 1, 2022
  Tours of the Tokyo Main Library are once again available on a limited basis
• September 3, 2021
  Last day of service in 2021 at the Tokyo Main Library to be Saturday, December 25
• September 1, 2021
  Revised Copying Fees
• April 26, 2021
  Relocation of periodicals
• March 10, 2021
  Termination of the National Union Catalog of Newspapers in Japan Database
• September 4, 2020
  Temporary suspension of library services during the transfer of library materials from the Tokyo Main Library to the Kansai-kan
• May 27, 2020
  Reopening of National Diet Library Facilities

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

• May 2025

  Library Holiday

  3rd, 4th, 5th, 6th, 11th, 18th, 21st, 25th

  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

• June 2025

  Library Holiday

  1st, 8th, 15th, 18th, 22nd, 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.

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

1-10-1 Nagata-cho, Chiyoda-ku, Tokyo 100-8924 JAPAN
Tel : +81-3-3581-2331