The phrase "spend looking" is correct and can be used in written English.
You would use it when describing how someone is using their time. For example, "He spent the afternoon looking through old photographs."
Developmental psychologist Janet Werker of the University of British Columbia in Canada shows babies videos and uses "looking time"—the amount of time they spend looking at the video as a measure of what they're interested in.
He or she even has data on how long characters should spend looking for it.
The time we spend looking at a work of art – 30 seconds?
Stoke-on-Trent is a city that defies expectation and rewards the time you spend looking.
I didn't realise then how much time I'd spend looking at unicorns over the coming years.
If you do use them, limit the time you spend looking at the sun as eye damage is cumulative.
An enduring question these days is how to engage children with nature given how much time they spend looking at screens of one size or another.
Ford and Audi say they extensively tested and tweaked their systems to cut down on the amount of time that drivers spend looking at screens.
Sociologists, lurking inconspicuously with stopwatches, have discovered the average time museum visitors spend looking at a work of art: it is roughly two seconds.
For example, fraud detection applications may reduce the time that people spend looking for anomalies, but increase requirements for deciding what to do about those anomalies.
Default 2. People search timeout: How long the system will spend looking for the specified number of people before centering on any available faces.
