Sentence examples for certain time boundaries from inspiring English sources

Stumble at your own risk and within certain time boundaries!

The domain was initially saturated with water, hydrogen gas was injected on the left-hand-side boundary within a certain time span ([0,5×104century]).

Say a child wants to stay out later, give them boundaries, or ask them to call/text at a certain time.

"An obvious recommendation is to set some boundaries regarding smartphone use, such as completely powering it down after a certain time (e.g., 10pm).

After a certain time, they disperse leaving the vertical structure corresponding to the preset forcing at the lower boundary (see discussion above).

At a certain time.

Have a certain time to exercise.

They punch in at a certain time.

vintage means 'of a certain time'.

Not just at certain times".

Certain times, yes.