Summer is nearing as clocks move forward an hour over the weekend for daylight saving.
Daylight saving starts at 2am on Sunday, when 2am becomes 3am.
Clocks will go back on April 5 next year.
The Fire Service urged people to test their smoke alarms at the same time they move their clocks forward.
"The simple fact is that smoke alarms save lives," the service's fire risk management national advisor Todd O'Donoghue said.
