East Hartford is located at 41°46'55" North, 72°36'44" West (41.782222, -72.612500).
According to the United States Census Bureau, the town has a total area of 18.78 mi2 (48.64 km2). 18.02 mi2 (46.68 km2) of it is land and 0.76 mi2 (1.96 km2) of it is covered by water. The total area is 4.03% water.
East Hartford is located in the Eastern Standard Time (EST) timezone, GMT-05:00. It observes Daylight Saving Time (DST).