The perception of time going faster seems to be a large part of what happens when a person gets older, an expert says.
Today, 2 July, means we are officially half-way through 2024.
But as we get older, Earth does not orbit the sun any faster - it is a phenomenon that takes place in our brains.
Professor of Psychology at the Michigan Neuroscience Institute Cindy Lustig, a world expert in the brain's relationship with time, told RNZ's Afternoons she was half-way through her summer - and she knew time was only going to appear to go faster as the new school year approached.
The "fascinating" thing about time was that it was a person's perception - and "really dependent" on experience and attention.
Something that played a big role in this as a person got older was life circumstances changing as getting into more of a routine, Lustig said.
She said a lot of people went through extremes during the Covid-19 when there was "Blursday", for example.
While one year was considered a large part of a 5-year-old's life, making up 20 percent of it, it was only a small part of a 50-year-old's.
But Lustig's advice?
"Be as fully present as you can in the moment and make the most of the moments you have."