TEHRAN, Young Journalists Club (YJC) - The commission said in December the elections would be held on Feb. 24, but the military government expressed concern that election-related events would clash with early preparations for the coronation of King Maha Vajiralongkorn, scheduled for May 4-6.
The monarchy is revered in Thailand, and this year's coronation will be the first in living memory for most of the population.
"The Election Commission agreed to set the election date for March 24," chairman Ittiporn Boonprakong told reporters.
He added the new date "is appropriate based on different factors, including early ballots and candidate registration."
Political parties will submit lists of parliamentary candidates and up to three candidates for prime minister to the commission between Feb. 4 and 8, he said.
Thai stocks rose by around 1 percent following the announcement and a royal decree, which was published earlier on Wednesday and confirmed the election was imminent.
The junta has pushed back the election several times for various reasons after overthrowing the democratically elected government of former prime minister Yingluck Shinawatra in 2014, citing the need for peace and order after months of street protests.
In a statement, the Office of the Prime Minister said it would be inappropriate for election events to "unnecessarily coincide or overlap with the scheduling of the Coronation Ceremony or other annual Royal Ceremonies".
It also said the new date would not be "too late to the extent that such a delay will have detrimental effects on the country and the Thai people".
Under the law, the Election Commission has to endorse winning members of parliament within 60 days of a vote, and parliament must convene within 15 days of the results and the King will preside over the opening of parliament.
King Maha Vajiralongkorn, 66, has been on the throne since shortly after his father died in 2016 following a 70-year reign, but he has not been officially crowned during a lengthy mourning period.