The Solomon Islands Prime Minister's office says parliament will resume sitting in early August.
Parliament was expected to sit on Thursday and debate a no confidence motion on Friday.
Manasseh Sogavare's press secretary, Deli Oso, says while the date is known, it's yet to be officially announced by the Governor General, Sir Nathaniel Waena.
A government statement says for the past 29 years, there has been the unconstitutional practice of the house being called to sit by the clerk of parliament.
The prime minister says upon his advice, it's the Governor General who has the power to set the date for the resumption of parliament.
Our correspondent Richard Toke, says the delay is yet another example of the Prime Minister doing things his own way.
"The manner in which he goes about doing what he wants becomes the question. At one stage before, a motion of no confidence was to be tabled in parliament a certain time. But since the Prime Minister has all the authority as to when parliament ends, he called parliament to end the day before when the motion of no confidence was supposed to be tabled in parliament."
Richard Toke says according to the Speaker of Parliament, the delay allows time for the new Attorney General Julian Moti to review parliamentary bills and papers.
