Last Day/Early Dismissal – Kingsport City/Sullivan County Post author By Vic Hasler Post date December 19, 2025 When 12/19/2025 12:00 am - 12:00 pm Add To Calendar Download ICS Google Calendar iCalendar Office 365 Outlook Live Event Type School Cal Online bookings are not available for this event. Back to Annual Calendar ← Thanksgiving Break → Winter Break – Kingsport City/Sullivan County