Yasuko Tamaki, a Japanese professional from Osaka, has spent more than 65 years in the same role at the same company. She joined Sunco Industries Co., Ltd. in 1956 at the age of 26 and continued working into her nineties. Her daily routine ran from 5:30 am to 5:30 pm, marking a career of rare dedication.
In November 2020, Guinness World Records recognised Tamaki as the world’s oldest office manager. Born on May 15, 1930, she was 90 years and 174 days old at the time of certification. Reports say she was still actively working in 2024, and a YouTube channel later claimed she was working in 2025 at the age of 95.
During her career, Tamaki saw Sunco Industries grow from a small firm of about 20 employees to a company with more than 430 staff. She
worked in the general affairs department, handling accounting, administration and internal communication. She was promoted to section chief at the age of 40.
Tamaki began learning computers at 67 and mastered them by 70. She continued earning certifications and learning new tools. At 86, she was still pursuing formal studies, and by 90, she was using several social media platforms.
Japanese worker Yasuco Tamaki spent 65 years at the same job, from age 26 to 91, clocking 5:30 AM to 5:30 PM daily, a record-setting career that earned a Guinness World Record.pic.twitter.com/Bn4ciOCxyl
Japanese worker Yasuco Tamaki spent 65 years at the same job, from age 26 to 91, clocking 5:30 AM to 5:30 PM daily, a record-setting career that earned a Guinness World Record. pic.twitter.com/Bn4ciOCxyl
— Polymarket Intel (@PolymarketIntel) January 27, 2026
She reportedly wakes up at 5.30 am, practises yoga, and recites Buddhist sutras before going to work by foot, bus or metro. She enjoys reading, card games, mahjong, and taking the Japan Kanji Aptitude Test to keep her mind sharp.
On receiving the award, Tamaki said she was deeply moved and believed that small efforts add up over time. She said her goal was to be useful to others and to make her colleagues happy.
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