"irregular times" is a correct and usable phrase in written English.
You can use it to describe a period or a schedule without a regular pattern or regular intervals. For example, "The train timetable has been disrupted recently due to irregular times."
But as a regular guy living in irregular times, Bernie is even more out of his element among the Prussian aristocrats in Smolensk at a classical music concert.
Like many others, he takes steps to limit his exposure, traveling at irregular times, exchanging his BMW for a less conspicuous car.
Cable hits like The Sopranos and Sex and the City proved that audiences would wait for a long time between installments of prestige shows and they could work at irregular times, including the spring, where the Sopranos premiered during its third, fifth, sixth and seventh (well, the second half of their sixth) seasons.
Migration can be contrasted with emigration, which involves a change in location not necessarily followed by a return journey; invasion or interruption, both of which involve the appearance and subsequent disappearance of great numbers of animals at irregular times and locations; and range expansion, which tends to enlarge the distribution of a species, particularly its breeding area.
In this graph, any node can be reached at irregular times.
Far from impeding or postponing the development of activity-based anorexia, presenting food at irregular times resulted in a pronounced body-weight loss, a low food intake and an increase in locomotor activity.
As Nijinsky was first to discover, the score's shifting, irregular time signatures deviated from most rules of western music.
The modern quantity theorists see the irregular time path of the money stock as the most important factor.
Russian Circles is a throwback to the 1990s heyday of "math-rock" instrumental bands, stuttering along in jerky, irregular time signatures before finding release in big metallic chords.
It is, in short, is where I had a lot of wild fun as a regular teenager in an irregular time.
There were also claims of irregular time-keeping at polling stations in pro-Russian areas, and that those locations had been used by people ineligible to vote.
