Under the current structure, academies, foundation, voluntary aided and foundation special schools have the power to set their own term dates, while local authorities are responsible for setting term dates for community and voluntary controlled schools.
He added: "Taking this into account, my intention is to harmonise school term dates for all maintained schools in Wales, with variations occurring very occasionally and only where they can be fully justified".
All state schools in England will be able to decide their own term dates, under plans for more school autonomy announced by the government.
On Monday the UK government announced plans to allow all state schools in England to decide their own term dates, under proposals for more school autonomy.
"We encourage local authorities to listen sympathetically to arguments for changes to term dates," a spokesperson for the Department for Education said.
Mr. Rajaratnam, the former head of the hedge fund Galleon Group, is set to serve his 11-year sentence - the longest prison term to date for insider trading - in a federal prison in Ayer, Mass.
A spokeswoman for the Department for Education said the reforms would enable headteachers to set term dates that worked best for local families.
A global system also would have to treat all airlines similarly and to set emissions reduction targets for a near-term date like 2020 rather than midcentury.
At present, academies and free schools have powers to set their own term dates, which the Department for Education hope will soon be extended to council-run schools.
Somebody needs to take the lead locally on deciding term dates and it makes sense for this to be the local authority, even if schools aren't required by law to follow it".
