The Ministry of Education says the shift system will be phased out of schools by the start of the September term in 2018.
The Ministry gave the commitment in a fact sheet published last week.
It says an additional 15 schools will be removed from the system come September this year, leaving another 30 to be removed by the start of the school year in 2018.
The Ministry says the change will affect 59,000 students across the country.
The shift system was introduced in the 1970s as a temporary measure to meet the need for additional school places, due to the growth in the population.
The Education Ministry says it has outlived its usefulness and began the phase out in 2007.
In 2007, the shift system was used in 1-hundred and 25 schools.