Changing Activity Durations, Timing, and Travel Among Older Adults in a Fast-Aging Society: The Korean Time Use Survey, 2004–2024

This study measures older adults’ activity change in duration and timing across five Korean Time Use Surveys (2004–2024) in one of the fastest-aging OECD societies. Weekday personal care (+28 minutes) and sport (+15) rose while social interaction (−20) fell; Sunday changes were parallel, mostly larger (work −43). Weekday travel time held near 72 minutes throughout; only Sunday travel fell (−12). In timing, sport and religion re-timed most among common activities (religion: weekdays only), and sleep changed little. Duration and timing were not significantly related (ρ = −0.35); the record offers aging societies an empirical reference for forecasting elderly travel demand.