While Turkey has saved 15.5 billion lira in energy with the fixed summer time it has been implementing for 8 years, the annual savings achieved with the application has reached 2 billion lira. With the transition to summer time, more daylight was used during the working hours of 08.30-17.30. Considering the electricity consumption in Turkey, a low increase in consumption was observed between 06.00-09.00 hours, a decrease in total consumption between 17.00-18.00 hours, and an increase in electricity consumption around 20.00 hours. It was determined that electricity consumption decreased according to the change in peak hours.
The total savings achieved from October 2016, when the application started, to October 2023, reached 10 billion kilowatt-hours. In other words, when per capita electricity consumption is calculated as 3 thousand 348 kilowatt hours, the annual electricity needs of 4.6 million people were met with the savings achieved here.
With the application, contrary to the claims that increased consumption causes waste due to starting the day in the dark in some provinces, savings in other hours have surpassed morning consumption. In addition, according to the studies, a serious decrease in the electricity consumption rate is observed between 22.00 and 24.00, which is expressed as the sleep start time. Permanent daylight saving time in Turkey started with the Decree of the Council of Ministers dated September 7, 2016. The practice became permanent with the decision published in the Official Gazette on October 2, 2018.