Daylight Savings Time Ends Tonight, No Change in Costa Rica
As most parts of North America and the world turn their clocks back at midnight, moving back to Standard Time, Costa Rica remains the same as it does not subscribe to Daylight Savings Time.

Standard time in time zones was instituted in the U.S. and Canada by the railroads on November 18, 1883. Prior to that, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by a well-known clock (on a church steeple, for example, or in a jeweler's window).

Daylight saving time, also known as summer time or, daylight savings time, is a widely used system of adjusting the official local time forward, usually by one hour from its official standard time, for the spring, summer, and early autumn periods.

Daylight Savings Time is most commonly used in temperate regions, due to the considerable variation in the amount of daylight versus darkness across the seasons in those regions.

Costa Rica has never subscribed to the Daylight Savings Time even though a decade ago a move was announced by the sitting government to move to Daylight Savings Time but was dropped at the last minute.

After midnight tonight, Costa Rica will, as a reference, be one hour behind Miami/New York  and two hours ahead of Los Angeles.