The Civil Aviation Authority (CAA) on Thursday said that Pakistani airspace will remain closed to commercial operations until 1pm today.
The CAA website shows that airspace is estimated to remain closed until 8am GMT on Friday, March 1.
Pakistani airspace was shut on Wednesday after the director general of Inter-Services Public Relations, the military's media wing, acknowledged the closure of Pakistan's airspace due to the prevailing security situation.
However, later in the day, the CAA ─ in a tweet which has since been deleted ─ had stated that commercial aviation had been partially restored.
But in another tweet in the early hours of Thursday morning, it retracted the "partial resumption" statement and said that the closure was in fact still intact, adding that it would reopen around midnight on Thursday.
This time has now been pushed ahead to 8am Eastern Standard Time, which is 6pm Pakistan time on March 1.
At the time of CAA's announcement on closure on Wednesday, Pakistani airspace, according to Flight Radar 24 — a global flight tracking service — was almost entirely empty.