As of September 2025, was the longest-serving prime minister in Japanese history, spending a total of days in the office. *** also recorded the longest consecutive serving period of days when he resigned in September 2020.
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Prime Minister's Office of Japan. (September 17, 2025). Longest term lengths of prime ministers in the history of Japan as of 2025 (days in office) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/1262176/japan-prime-ministers-longest-tenure-office/
Prime Minister's Office of Japan. "Longest term lengths of prime ministers in the history of Japan as of 2025 (days in office)." Chart. September 17, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/1262176/japan-prime-ministers-longest-tenure-office/
Prime Minister's Office of Japan. (2025). Longest term lengths of prime ministers in the history of Japan as of 2025 (days in office). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/1262176/japan-prime-ministers-longest-tenure-office/
Prime Minister's Office of Japan. "Longest Term Lengths of Prime Ministers in The History of Japan as of 2025 (Days in Office)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Sep 2025, /statistics/1262176/japan-prime-ministers-longest-tenure-office/
Prime Minister's Office of Japan, Longest term lengths of prime ministers in the history of Japan as of 2025 (days in office) ÌÇÐÄÆƽâ°æ, /statistics/1262176/japan-prime-ministers-longest-tenure-office/ (last visited July 29, 2026)
Longest term lengths of prime ministers in the history of Japan as of 2025 (days in office) [Graph], Prime Minister's Office of Japan, September 17, 2025. [Online]. Available: /statistics/1262176/japan-prime-ministers-longest-tenure-office/
