Canadian Emergency Department Wait Times (ERstat)

Historical emergency department (ED) wait times at Canadian hospitals, compiled by ERstat from official provincial and regional health-authority feeds. This is a periodic archived snapshot of the historical record; live, current data is at erstat.ca. Three CSV files (documented in README.md): hospitals.csv — reference table of the emergency departments; wait_times_hourly.csv — hourly median/min/max wait per hospital (UTC); wait_patterns.csv — typical wait by local day-of-week and hour-of-day (the "when is this ED least busy" table). Wait times are estimates (most commonly time-to-physician) and are not medical advice; in an emergency, call 911. Live data and a free API: erstat.ca/data. Commercial use and live-feed licensing: [e-mail].