Mainland Ecuadorian time is GMT -5 hours, which is the same as US Eastern Standard Time Zone (ET). In December, the time in Ecuador is the same time as in the US (ET)
Since Ecuador is near the equator, you can expect approximately 12 hours of daylight each day. It is dark by 6:30 pm.
Galapagos Islands time is GMT -6 hours, which is the same as Central Standard Time.

