Abu Dhabi's Seha-operated Covid-19 vaccine centres have limited appointments to administer inoculations on weekdays.
Anyone with a weekend appointment should visit a centre between Sunday and Thursday instead to receive their vaccine.
Seha (Abu Dhabi Health Services Company) is the emirate's government hospital regulator and manages dozens of vaccination centres across the capital.
The Seha vaccination centre at Abu Dhabi Cruise Terminal has the capacity to administer the vaccine to up to 3,000 people per day.
The UAE has set out to immunise half of the population against Covid-19 by the end of next month.
More than 5.2 million doses of vaccine were given to the public as of Wednesday.
Officials said this week that more than 40 per cent of the public had received at least one dose of a vaccine.
Two doses are required to be fully vaccinated.
Inside an Abu Dhabi vaccine centre:
This month, Abu Dhabi said it would limit vaccinations to the elderly, disabled, and people with chronic illnesses over the following six weeks.
It followed a nationwide decision by the Ministry of Health, which said all vaccine centres were now dedicated "only to the elderly and people with chronic diseases, in the light of the spike in infections over the past weeks".
Abu Dhabi residents who have had their first vaccine dose will be able to take their second as scheduled.
But people who have not yet had their first dose are expected to have to wait until next month.
Walk-in services will end and younger people will be seen by appointment only.
This week, Dubai residents reported being turned away from Dubai Parks and Resorts' vaccine centre, which is run by Seha, at the weekend despite having appointments confirmed on the Seha app.
The Department of Health Abu Dhabi told The National on Sunday that the centre would cease weekend appointments and said people should return during weekdays.
"Residents scheduled to take the second dose will be called to reschedule their appointments this week," the department said.