On February 10, 2026, Sanae Takaichi was *** days in office in her first term as prime minister of Japan, which she began on October 21, 2025. The longest-serving prime minister since the beginning of the Heisei era was Shinzo Abe, who stayed in office for a total of 3,188 days.
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Prime Minister's Office of Japan. (February 10, 2026). Term lengths of prime ministers inaugurated since the Heisei era in Japan as of 2026 (days in office) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/1484535/japan-prime-ministers-tenure-since-heisei-era/
Prime Minister's Office of Japan. "Term lengths of prime ministers inaugurated since the Heisei era in Japan as of 2026 (days in office)." Chart. February 10, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/1484535/japan-prime-ministers-tenure-since-heisei-era/
Prime Minister's Office of Japan. (2026). Term lengths of prime ministers inaugurated since the Heisei era in Japan as of 2026 (days in office). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/1484535/japan-prime-ministers-tenure-since-heisei-era/
Prime Minister's Office of Japan. "Term Lengths of Prime Ministers Inaugurated since The Heisei Era in Japan as of 2026 (Days in Office)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 10 Feb 2026, /statistics/1484535/japan-prime-ministers-tenure-since-heisei-era/
Prime Minister's Office of Japan, Term lengths of prime ministers inaugurated since the Heisei era in Japan as of 2026 (days in office) ÌÇÐÄÆƽâ°æ, /statistics/1484535/japan-prime-ministers-tenure-since-heisei-era/ (last visited July 29, 2026)
Term lengths of prime ministers inaugurated since the Heisei era in Japan as of 2026 (days in office) [Graph], Prime Minister's Office of Japan, February 10, 2026. [Online]. Available: /statistics/1484535/japan-prime-ministers-tenure-since-heisei-era/
