With aging, emotion regulation competence is thought to improve, which benefits occupational well-being. Past research on aging and emotion regulation at work has mainly focused on one-time measurements of habitual strategy use. Yet, emotion regulation is a response to changing situational requirements. Using an event-based daily diary approach, we examined whether age moderates the extent to which three characteristics of negative work events (intensity, controllability, and interpersonal nature) predict the adoption of four emotion-regulation strategies (positive reappraisal, distraction, emotion acceptance, and expressive suppression) and subsequent well-being outcomes (job satisfaction and fatigue). Employees (N = 199) aged between 18 a...